Reference

Coin & Bullion Glossary

A plain-English reference to the vocabulary of coin collecting and precious-metals investing — from grading shorthand and minting jargon to bullion-market and IRA terminology.

Numismatics and bullion investing each carry a specialized language. A coin described as a “raw, prooflike MS-63 with original toning” or a bar quoted at “spot plus 4% with .9999 fineness” can be opaque to a newcomer and ambiguous even to seasoned buyers. This glossary defines the terms you are most likely to meet when buying, selling, grading, storing, or simply reading about gold and silver coins and bullion.

Entries are listed A–Z. Each term carries a category tag so you can scan by theme — grading, minting, bullion and investing, market and pricing, authentication, coin types, and more. Where a term has both a collector meaning and a bullion-market meaning, both are given. Use the alphabet bar or the category filters below to navigate.

A ↑ top

About Good (AG) (Grading & Condition): A grading term for a coin so heavily worn that the type and date are barely recognizable. Roughly AG-3 on the 1–70 scale.
About Uncirculated (AU) (Grading & Condition): A coin that is nearly new, showing only the slightest traces of wear on the highest points of the design. Also called Almost Uncirculated; grades AU-50 through AU-58. The grade just below Mint State.
alloy (Minting & Production): A combination of two or more metals. Most circulating and many bullion coins are alloys; for example, the American Gold Eagle is an alloy of gold, copper, and silver for durability.
altered date (Errors & Varieties): A false date on a coin, deliberately changed to make a common issue appear to be a rarer, more valuable one. A form of fraud, not a genuine variety.
American Eagle (Coin Types & Denominations): The U.S. Mint’s flagship bullion program, launched in 1986, issued in gold, silver, and platinum (and later palladium). “Eagle” is also the historical name for the U.S. ten-dollar gold coin.
ancient (Coin Types & Denominations): A coin struck before medieval times — Greek, Roman, Byzantine, and other coinages of antiquity.
artificial toning (Authentication & Grading Services): Color added to a coin by deliberate chemical or heat treatment, often to hide flaws or imitate desirable natural toning. Considered a form of doctoring when undisclosed. See also original toning.
ask (Market & Pricing): The price at which a dealer offers to sell. The difference between the ask and the bid is the spread. See also bid, spread.
assay (Authentication & Grading Services): A test that determines the metallic content and purity (fineness) of a precious-metal item. An “assay card” or certificate often accompanies bullion bars.
avoirdupois ounce (Bullion & Investing): The standard ounce used for everyday goods (about 28.35 grams). Precious metals are not weighed this way; they use the heavier troy ounce (about 31.10 grams). Confusing the two is a common beginner error.

B ↑ top

bag marks (Grading & Condition): Nicks and abrasions a coin acquires from contact with other coins, typically while stored loose in mint bags. A single such mark is a “bag mark”; their number and severity heavily influence Mint State grades.
bid (Market & Pricing): The price at which a dealer offers to buy. See also ask, spread.
billon (Minting & Production): A low-grade alloy of silver (usually under 50%) mixed with another metal, typically copper, used historically for minor coinage.
blank (Minting & Production): The formed metal disk on which a coin design is stamped, before it is struck. Also called a planchet (a planchet is technically a blank that has passed through the upsetting mill to gain a raised rim).
blemish (Grading & Condition): Any surface defect on a coin.
bourse (Collecting & Numismatics): The trading floor of a coin show, where dealers buy and sell with one another and the public.
branch mint (Minting & Production): Any U.S. Mint facility other than the main mint at Philadelphia — for example, Denver, San Francisco, or the historical Carson City and New Orleans mints.
Brilliant Uncirculated (BU) (Grading & Condition): A coin that is bright, lustrous, and shows no wear, but is not certified to a specific Mint State number. Often used loosely for ungraded new-condition coins; usually implies the lower end of Uncirculated.
bronze (Minting & Production): An alloy of copper, zinc, and tin, used for many cents and medals.
bullion (Bullion & Investing): Uncoined or coined precious metal valued primarily for its metal content rather than rarity or collectibility — bars, ingots, rounds, and bullion coins. The opposite end of the spectrum from true numismatic coins.
bullion coin (Bullion & Investing): A coin whose value tracks its precious-metal content plus a modest premium, produced mainly for investors — for example, the American Eagle, Canadian Maple Leaf, or South African Krugerrand. See also semi-numismatic, numismatic.
BU roll (Collecting & Numismatics): A roll of Brilliant Uncirculated coins of one type, typically assembled at a bank from an original mint bag. A BU roll of Morgan dollars, for instance, holds 20 coins.
business strike (Minting & Production): A coin produced for everyday commerce, using normal dies and presses; the opposite of a proof. Also called a circulation strike.

C ↑ top

cameo (Grading & Condition): A proof coin with frosted, “frozen” design devices contrasting against deeply mirrored fields. Designated “CAM” or, at the highest contrast, “Deep Cameo” (DCAM) / “Ultra Cameo.” Commands a premium.
cast coins (Minting & Production): Coins made by pouring molten metal into a mold rather than striking blanks with dies. Common in ancient and some Asian coinages; modern counterfeits are often cast.
catalog (Collecting & Numismatics): A dealer’s or auction house’s printed (or online) listing of coins, whether at fixed prices or for auction. A valuable reference for images and information.
cent (Coin Types & Denominations): One one-hundredth of the standard monetary unit. Known by various names worldwide (centavo, centime, centesimo).
certified coin (Authentication & Grading Services): A coin that has been authenticated, graded, and sealed in a tamper-evident holder by an independent (neither buyer nor seller) third-party grading service. See also slab, encapsulated.
cherrypicker (Collecting & Numismatics): A collector who searches through unattributed coins to find scarce varieties or undergraded pieces others have missed.
Choice (Grading & Condition): A quality modifier indicating an above-average coin for its grade (e.g., “Choice Very Fine,” “Choice Uncirculated,” roughly MS-63/64).
circulated (Grading & Condition): A coin showing wear from use in commerce; any grade below Mint State / Uncirculated.
circulation strike (Minting & Production): See business strike.
clad / clad coinage (Minting & Production): Coins made of bonded metal layers. U.S. dimes, quarters, and halves struck since 1965 have a copper core clad with copper-nickel.
cleaned (Authentication & Grading Services): A coin from which dirt or toning has been removed with an abrasive or chemical agent. Improper cleaning leaves hairlines and can render a coin ungradeable or “details”-graded. See also dipped.
COMEX (Market & Pricing): The primary U.S. futures exchange for gold and silver, part of CME Group. COMEX futures and warehouse stocks are key reference points for precious-metals pricing and for refiner accreditation.
coin doctor (Authentication & Grading Services): Someone who deceptively alters a coin’s appearance — cleaning, repairing, plugging, retoning — to make it appear more valuable. When the same work is done openly and ethically, it is called conservation.
coin show (Collecting & Numismatics): A gathering of dealers and collectors for buying, selling, and trading. Major shows host a bourse, auctions, and educational programs.
collar (Minting & Production): The outer ring or die chamber that holds the blank in place during striking and forms the coin’s edge (plain, reeded, or lettered). Also called the collar die.
colonial (Coin Types & Denominations): A coin issued by or circulated in the American colonies, including some foreign pieces that traded there.
commemorative (Coin Types & Denominations): A coin struck to honor a person, place, or event, generally sold at a premium and not intended to circulate.
common (Market & Pricing): A coin that is readily available and inexpensive relative to scarcer dates in its series.
condition (Grading & Condition): The grade, or state of preservation, of a coin.
Condition Census (Collecting & Numismatics): A ranked list of the finest known examples of a given coin or variety.
conservation (Authentication & Grading Services): The professional, disclosed removal of harmful surface contaminants or PVC residue to stabilize a coin, distinct from deceptive cleaning. Offered by services such as NCS (Numismatic Conservation Services).
consignment (Market & Pricing): Coins entrusted to an auction house or dealer to sell on the owner’s behalf, with payment after the sale.
contact marks (Grading & Condition): Small abrasions on an Uncirculated coin from contact with other coins in a bag or roll. See also bag marks.
countermark (Errors & Varieties): A stamp or punch applied to a coin after minting, often by another government, to validate or revalue it.
crack-out (Authentication & Grading Services): A coin removed from its grading-service holder, often to be resubmitted in hopes of a higher grade.
crown (Coin Types & Denominations): Any dollar-size coin roughly 38 mm in diameter, especially from the United Kingdom and Commonwealth, historically struck in silver.
cud (Errors & Varieties): A blob of raised metal at a coin’s rim where a piece of the die broke away, leaving a void that fills with metal during striking.

D ↑ top

denomination (Coin Types & Denominations): The face value assigned to a coin (cent, dime, dollar, etc.).
designer (Coin Anatomy & Design): The artist who creates a coin’s design, distinct from the engraver who cuts it into a die.
design type (Coin Anatomy & Design): The name given to a particular coin design (for example, the Walking Liberty half dollar).
device (Coin Anatomy & Design): Any raised design element on a coin — a portrait, eagle, or emblem — as opposed to the flat field.
die (Minting & Production): A hardened steel cylinder bearing an incuse (sunken), mirror image of the design, used to strike coins. Each coin needs an obverse die and a reverse die.
die crack (Errors & Varieties): A fine raised line on a coin formed when metal flows into a crack in the die.
die variety (Errors & Varieties): A coin distinguishable by minor differences in its dies (date position, repunched mintmark, doubling). Many early U.S. dies were hand-finished, making varieties collectible.
dipped / dipping (Authentication & Grading Services): Briefly immersing a coin in a chemical bath to remove toning or oxidation. Light, expert dipping can be acceptable; overdipping etches and dulls the surface.
doctored (Authentication & Grading Services): A coin deceptively cleaned, repaired, or retoned to inflate its apparent grade or value. See coin doctor.
double eagle (Coin Types & Denominations): The U.S. twenty-dollar gold coin (1850–1933), including the celebrated Saint-Gaudens and Liberty Head types.
doubled die (Errors & Varieties): A die that received misaligned impressions from the hub, producing visible doubling of letters or devices on every coin it strikes (e.g., the 1955 Lincoln cent). Distinct from machine doubling.
double-struck (Errors & Varieties): A coin struck more than once by the dies, with the images offset.
doubloon (Coin Types & Denominations): Popular name for a historic Spanish gold coin, originally valued at about $16.

E ↑ top

eagle (Coin Types & Denominations): Historically, the U.S. ten-dollar gold coin. Since 1986 the word also names the American Eagle bullion series in gold, silver, platinum, and palladium.
edge (Coin Anatomy & Design): The “third side” of a coin — its outer rim surface, which may be plain, reeded, or lettered. Not to be confused with the rim on the obverse and reverse faces.
electrotype (Authentication & Grading Services): A reproduction of a coin made by electrodeposition, historically used in museum displays; can also be a deceptive copy.
electrum (Minting & Production): A naturally occurring gold-silver alloy. The world’s earliest coins (Lydia, 7th century BCE) were struck in electrum.
encapsulated (Authentication & Grading Services): Sealed in a protective plastic holder (“slab”) by a grading service after authentication and grading. See also slab, certified coin.
engraver (Minting & Production): The person who cuts or sculpts a design into a coinage die or model.
error (Errors & Varieties): A coin that results from a mistake in the minting process — off-center strikes, clipped planchets, wrong-planchet strikes, and more. Many errors are collectible.
estimate (Market & Pricing): An auction house’s projected selling range for a coin, based on price guides and comparable sales.
exergue (Coin Anatomy & Design): The lower portion of a coin’s design, often divided off by a line and typically containing the date.
Extremely Fine (EF or XF) (Grading & Condition): A well-preserved circulated grade (EF-40 to EF-45) with light wear only on the highest points and most fine detail still sharp.
eye appeal (Grading & Condition): The overall visual attractiveness of a coin — luster, color, strike, and freedom from marks. Strong eye appeal can command a large premium over the bare grade.

F ↑ top

face value (Coin Types & Denominations): The legal-tender value stamped on a coin, often far below its collector or metal value (a silver dime’s face value is 10 cents; its melt value is much more).
Fair (Grading & Condition): A nearly worn-smooth grade (about FR-2) in which the type is barely identifiable.
fake (Authentication & Grading Services): A counterfeit coin or holder not produced by the issuing authority. Counterfeit coins are sometimes sold in counterfeit slabs.
field (Coin Anatomy & Design): The flat, blank background of a coin’s surface, where there is no design or lettering.
filler (Collecting & Numismatics): A worn or impaired example of a rare coin, used to fill a slot in a collection until a better one is found.
Fine (Grading & Condition): A moderately worn circulated grade (F-12 to F-15) with major design elements clear but fine detail worn.
fineness (Bullion & Investing): The purity of a precious metal, expressed in parts per thousand. A coin of 90% silver is “900 fine”; investment-grade gold is often “.9999” (24-karat, 99.99% pure). See also karat.
Finest Known (Collecting & Numismatics): The single best-preserved example known of a particular coin, date, or variety.
first strike / early release (Authentication & Grading Services): Marketing designations (e.g., PCGS “First Strike,” NGC “Early Releases”) for coins submitted within a set window after a release date. They denote timing, not superior quality.
flan (Minting & Production): A blank disk of metal in the size and shape of a coin; another word for planchet.
fractional (Bullion & Investing): A bullion coin weighing less than one troy ounce — commonly 1/2, 1/4, and 1/10 ounce. Fractionals carry higher premiums per ounce than full-ounce coins.
full strike (Grading & Condition): A coin showing complete design detail from a sharp, well-pressured strike. Opposite of a weak or incomplete strike.

G ↑ top

Gem (Grading & Condition): A coin of exceptionally high quality, generally MS-65/PF-65 or finer.
Gem Uncirculated (Grading & Condition): An Uncirculated coin in the MS-65 to MS-70 range, with excellent eye appeal and minimal marks.
Good (G) (Grading & Condition): A heavily worn circulated grade (G-4 to G-6) in which the design is outlined but interior detail is gone.
Good Delivery (Bullion & Investing): The international wholesale standard for large bullion bars set by the London Bullion Market Association (LBMA). A Good Delivery gold bar weighs roughly 400 troy ounces (about 12.5 kg) and must be at least 995.0 fine; silver bars run about 1,000 ounces. Good Delivery bars are the form settled in the Loco London market.
grade (Grading & Condition): The numeric or descriptive assessment of a coin’s state of preservation. See Sheldon scale.
grading (Grading & Condition): The skill of determining a coin’s condition, increasingly standardized by third-party services.
Greysheet (Market & Pricing): The common name for the *Coin Dealer Newsletter (CDN)*, a long-running wholesale price guide for U.S. coins. Each listing carries a unique GSID (Greysheet ID).
gold-silver ratio (Market & Pricing): The number of ounces of silver it takes to buy one ounce of gold, watched by investors as a relative-value indicator between the two metals.

H ↑ top

hairlines (Grading & Condition): Fine parallel scratches on a coin’s surface, usually from cleaning or wiping, that reduce grade and eye appeal.
half eagle (Coin Types & Denominations): The U.S. five-dollar gold coin, struck from 1795 to 1929.
hallmark (Bullion & Investing): A stamped mark on a bar or coin indicating its maker, weight, and fineness; on accredited bullion it functions as a guarantee of content.
hub (Minting & Production): A positive-image punch bearing the design in relief, used to impress the design into working dies.

I ↑ top

incomplete strike (Errors & Varieties): A coin with missing or weak design areas caused by low pressure, misaligned dies, or debris.
incuse (Coin Anatomy & Design): A design recessed below the coin’s surface rather than raised above it. The Indian Head gold pieces of 1908–1929 famously used an incuse design.
ingot (Bullion & Investing): A cast or stamped bar of precious metal. Larger than a “round” and not denominated as legal tender.
inscription (Coin Anatomy & Design): The lettering on a coin; see legend.
intrinsic value (Bullion & Investing): The melt value of the actual metal in a coin, independent of its face value or collector premium. Also called bullion value or melt value.
investment grade (Market & Pricing): A promotional label, generally meaning a coin of MS-65 or better. Not a regulated or guaranteed standard — treat with caution.
IRA-eligible (Bullion & Investing): Precious-metals products that meet IRS requirements for inclusion in a self-directed individual retirement account. Under IRC §408(m), gold must be at least .995 fine, silver .999, and platinum and palladium .9995, and the items must be produced by an accredited refiner/mint and held by an approved custodian. The American Gold Eagle (.9167) is a specific statutory exception. (Information only — consult a qualified tax advisor.)

J ↑ top

junk silver (Bullion & Investing): Common-date, circulated 90% silver U.S. coins (dimes, quarters, half dollars dated 1964 and earlier) valued for their silver content rather than collectibility. “Junk” refers to the lack of numismatic premium, not poor quality.

K ↑ top

karat (Bullion & Investing): A measure of gold purity in 24ths: 24-karat is pure gold (.999+ fine), 22-karat is .9167 fine, 14-karat is .585 fine. Not to be confused with “carat,” a unit of gem weight.
key coin / key date (Collecting & Numismatics): The scarcest and usually most valuable date or mintmark in a series, often the hardest piece to complete a set (e.g., the 1916-D Mercury dime).
Krugerrand (Coin Types & Denominations): South Africa’s gold bullion coin, first struck in 1967 and the original modern one-ounce bullion coin. Made of 22-karat (.9167) gold for durability.

L ↑ top

laureate (Coin Anatomy & Design): A portrait whose head is crowned with a laurel wreath, common on classical and 19th-century coinage.
LBMA (Bullion & Investing): The London Bullion Market Association, which sets the Good Delivery standards for wholesale gold and silver bars and accredits refiners worldwide. LBMA accreditation is a key marker of a trusted bullion brand.
legal tender (Coin Types & Denominations): Money officially issued and recognized by a government for the settlement of debts. Most modern bullion coins are legal tender at a nominal face value far below their metal worth.
legend (Coin Anatomy & Design): The principal lettering or inscription on a coin, such as a country name or a motto like “In God We Trust.”
lettered edge (Coin Anatomy & Design): An edge bearing an inscription, seen on some older U.S. coins, modern Presidential dollars, and certain commemoratives.
London Fix / LBMA price (Market & Pricing): A benchmark gold and silver price set in twice-daily (gold) and daily (silver) electronic auctions administered under LBMA oversight, used as a global reference for settlement.
luster (Grading & Condition): The way light reflects off the flow lines of an Uncirculated coin’s surface, giving a frosty or cartwheel sheen. Luster diminishes as a coin wears.

M ↑ top

melt value (Bullion & Investing): See intrinsic value. The current market value of the metal a coin contains, calculated from its weight, fineness, and the spot price.
milled edge (Coin Anatomy & Design): The raised rim around a coin’s face that protects the design, distinct from the narrow reeded edge.
mint error (Errors & Varieties): Any mismade or defective coin produced by a mint. See error.
mint luster (Grading & Condition): The original frosty brilliance on an Uncirculated coin’s surface.
mintage (Collecting & Numismatics): The total number of a given coin struck — a primary driver of scarcity and value.
mintmark (Coin Anatomy & Design): A small letter identifying the facility that struck a coin: P (Philadelphia), D (Denver), S (San Francisco), W (West Point), CC (Carson City), O (New Orleans), and others.
Mint set (Collecting & Numismatics): An official set of Uncirculated coins packaged and sold by the Mint, containing examples from each producing facility for the year.
Mint State (MS) (Grading & Condition): The Uncirculated range of the grading scale, MS-60 through MS-70, denoting coins with no wear. MS-70 is theoretically perfect.
Morgan dollar (Coin Types & Denominations): The U.S. silver dollar struck 1878–1904 and again in 1921, among the most widely collected of all U.S. coins.
motto (Coin Anatomy & Design): An inspirational phrase on a coin, such as “E Pluribus Unum.”
mule (Errors & Varieties): A coin struck from two dies not intended to be paired, sometimes from different denominations.

N ↑ top

NGC (Authentication & Grading Services): Numismatic Guaranty Company, founded 1987, one of the two largest third-party grading services and the leading grader of world coins.
numismatics (Collecting & Numismatics): The study and collecting of coins, paper money, tokens, and related objects.
numismatic coin (Bullion & Investing): A coin valued chiefly for rarity, condition, and demand among collectors rather than its metal content — the opposite of a pure bullion coin. See also semi-numismatic.

O ↑ top

obverse (Coin Anatomy & Design): The front, or “heads,” side of a coin, usually bearing the principal portrait or date.
off-center (Errors & Varieties): A coin struck while misaligned with the dies, leaving part of the design off the planchet. The degree (e.g., “20% off-center”) affects value.
OGP (Collecting & Numismatics): Original Government Packaging — the official mint box, capsule, and certificate that accompany a coin. Complete OGP can add value to modern issues.
original toning (Grading & Condition): Natural color a coin develops over time from environmental exposure, prized when attractive. See also artificial toning.
ounce (troy) (Bullion & Investing): See troy ounce.
overdate (Errors & Varieties): A coin showing one date punched over another (e.g., an “8 over 7”), usually from reusing and re-engraving a prior year’s die.
overgraded (Grading & Condition): A coin assigned a grade higher than its true condition, whether by error or to inflate price.
overstrike (Errors & Varieties): A coin struck with new dies directly over a previously struck coin, with traces of the undertype sometimes visible.

P ↑ top

patina (Grading & Condition): The natural surface film, often green or brown, that forms on ancient copper and bronze coins through long oxidation; generally desirable.
pattern (Minting & Production): An experimental or trial coin of a proposed design, denomination, or metal, struck to evaluate it. By definition, a pattern was never adopted for regular issue.
pedigree (Collecting & Numismatics): The documented ownership history of a notable coin, which can add value when it includes famous collections.
planchet (Minting & Production): The prepared blank disk, complete with raised rim, that is struck into a coin.
premium (Market & Pricing): The amount charged for a bullion coin or bar above its melt value, covering minting, distribution, and dealer margin. Often quoted as “X% over spot.” Lower premiums favor the buyer.
proof (Minting & Production): A coin made by a special process using polished dies and planchets, producing mirrored fields and sharp, often frosted, devices. Proofs are made for collectors, not circulation, and graded on a PF (or PR) scale.
proof set (Collecting & Numismatics): An official annual set of proof coins packaged and sold by the Mint.
prooflike (PL) (Grading & Condition): A business-strike coin with reflective, proof-like fields though made with normal production dies. NGC designates “PL” and “DPL” (Deep Prooflike).
PCGS (Authentication & Grading Services): Professional Coin Grading Service, founded 1986, which pioneered standardized third-party grading and sealed holders. PCGS-graded coins typically command the strongest market premiums.

Q ↑ top

quarter eagle (Coin Types & Denominations): The U.S. $2.50 gold coin, struck from 1796 into the early 20th century.

R ↑ top

raw (Authentication & Grading Services): A coin that has not been certified or encapsulated by a grading service. Raw coins carry more risk for inexperienced buyers because grade and authenticity are unverified.
reeded edge (Coin Anatomy & Design): An edge with fine vertical grooves, originally introduced to deter clipping of precious-metal coins; standard on modern U.S. dimes, quarters, and halves.
relief (Coin Anatomy & Design): Design elements raised above the field. The opposite of incuse. “High relief” coins have dramatically sculpted designs.
restrike (Minting & Production): A coin struck from genuine dies later than the date it bears, often to meet collector demand (e.g., Austrian and Mexican gold restrikes).
reverse (Coin Anatomy & Design): The back, or “tails,” side of a coin.
rim (Coin Anatomy & Design): The raised border on each face of a coin that protects the design from wear.
round (Bullion & Investing): A privately minted, coin-shaped disk of bullion (commonly one troy ounce of .999 silver). A round resembles a coin but is not legal tender and bears no face value.

S ↑ top

Saint-Gaudens (Coin Types & Denominations): The double eagle ($20 gold) designed by sculptor Augustus Saint-Gaudens, struck 1907–1933 and widely regarded as the most beautiful U.S. coin.
semi-numismatic (Bullion & Investing): A coin that carries both meaningful bullion value and a collector premium — for example, certified modern bullion coins, low-mintage releases, or older bullion coins in high grade. It sits between pure bullion and true numismatic rarities.
series (Collecting & Numismatics): The complete run of dates and mintmarks of one design and denomination (e.g., Lincoln cents, 1909–present).
set (Collecting & Numismatics): A collection containing all the coins of a defined group — a date set, type set, or year set.
Sheldon scale (Grading & Condition): The 1-to-70 numeric grading scale, originated by Dr. William Sheldon and extended by the hobby, on which 70 represents perfection and 1 a barely identifiable coin. The basis of all modern U.S. grading.
slab (Authentication & Grading Services): The sealed, tamper-evident plastic holder in which a grading service encapsulates a certified coin, bearing the grade, certification number, and often a barcode or QR code for verification.
sovereign (Coin Types & Denominations): The British gold coin with a nominal value of one pound, containing about 0.2354 ounce of gold; a long-standing internationally traded bullion and semi-numismatic coin.
spot price (Market & Pricing): The current market price for immediate delivery of one troy ounce of a precious metal in bullion form. Spot is the reference point from which coin and bar prices (spot plus premium) are quoted.
spread (Market & Pricing): The difference between a dealer’s buy (bid) and sell (ask) prices. A narrower spread is more favorable to the customer; bullion products generally have tighter spreads than numismatic coins.
strike (Minting & Production): Both the act of stamping a coin and the resulting sharpness of detail (described as weak, soft, bold, or full). Strike quality affects grade and value.
stacker (Bullion & Investing): Informal term for an investor who accumulates physical bullion over time, typically lower-premium coins, bars, and rounds, as a long-term store of value.

T ↑ top

toning (Grading & Condition): Color that develops on a coin’s surface from oxidation or environmental contact. Attractive original toning can add substantial value; artificial toning is a defect. See also original toning, artificial toning.
token (Coin Types & Denominations): A coin-like piece with no government legal-tender status, privately issued for advertising, transit, commemorative, or trade purposes.
trade dollar (Coin Types & Denominations): A silver dollar issued for foreign commerce; the U.S. trade dollar (from 1873) was made for trade with Asia.
troy ounce (Bullion & Investing): The standard unit of weight for precious metals, equal to about 31.1035 grams — heavier than the everyday (avoirdupois) ounce of about 28.35 grams. All bullion is priced per troy ounce.
truncation (Coin Anatomy & Design): The sharply cut-off lower edge of a bust or portrait, where the designer’s initials often appear.
type (Collecting & Numismatics): A coin design defined by its shared distinguishing features (design, metal, denomination). For example, Barber dimes are one type, Mercury dimes another.
type set (Collecting & Numismatics): A collection containing one representative coin of each design type within a chosen series or period, rather than every date.

U ↑ top

Uncirculated (Grading & Condition): A coin that has never circulated and retains full original surface and luster; synonymous with Mint State. Confusingly, the U.S. Mint also sells “Uncirculated” collector coins with a special finish.
undergraded (Grading & Condition): A coin assigned a grade lower than its true condition — sometimes a bargain opportunity for a sharp-eyed buyer.
unique (Collecting & Numismatics): A coin of which only a single example is known to exist.

V ↑ top

variety (Errors & Varieties): A coin that differs from the standard issue of its type through a repeatable die difference (repunched date, doubled die, mintmark style). Distinct from a one-off error.
Very Fine (VF) (Grading & Condition): A lightly-to-moderately worn circulated grade (VF-20 to VF-35) with most major detail still clear.
Very Good (VG) (Grading & Condition): A well-worn circulated grade (VG-8 to VG-10) with the design outlined and a little interior detail remaining.
vaulted / allocated storage (Bullion & Investing): Professional storage of bullion in a secure depository. “Allocated” means specific, identified bars or coins are held in the owner’s name; “unallocated” means a claim on a pool of metal rather than specific pieces.

W ↑ top

wear (Grading & Condition): The loss of metal and detail from friction during circulation, the primary factor in grading circulated coins.
West Point (W) (Minting & Production): The U.S. Mint facility at West Point, New York, which strikes much of the nation’s gold, silver, and platinum bullion and many collector issues, marked “W.”
wheaties / wheat cent (Coin Types & Denominations): Lincoln cents with the wheat-ears reverse, issued from 1909 to 1958.
world coin (Coin Types & Denominations): Any coin issued by a country other than the United States.

X · Y · Z ↑ top

XF (Grading & Condition): See Extremely Fine (EF).
year set (Collecting & Numismatics): A collection of one coin of each denomination issued in a single year.

How to use this glossary

This reference is designed for quick lookup. New collectors and first-time bullion buyers may find it most useful to start with the bullion-and-investing terms — spot price, premium, spread, fineness, troy ounce, bullion coin vs. numismatic coin, and IRA-eligible — which govern the economics of any purchase. Collectors focused on individual coins will lean on the grading vocabulary built around the Sheldon scale and the major grading services.

Two distinctions are worth internalizing because they drive price more than any other: the difference between bullion value and collector value (a coin can be worth its metal, its rarity, or both), and the difference between a certified coin and a raw one (independent grading reduces, though never fully eliminates, risk).

This glossary is provided by FMV Gold for general educational purposes only. It is not investment, tax, or legal advice, and nothing here is a recommendation to buy or sell any coin, bullion product, or security. Grading standards, market premiums, tax rules, and product specifications change over time and can vary by issuer and jurisdiction; verify current details with the relevant mint, grading service, or a qualified professional before making any decision.