Catalog

Coins

Browse 21 matching coins.

Metal Gold (10) Silver (10) Platinum (1)

Country Australia (15) United Kingdom (5) Republic of Congo (1)

Era Modern (18) Pre-1933 (2) Mid-Century (1)

Series Science Explained Sovereign Silverback Gorilla Koala American Eagle (286) Lunar (105) Maple Leaf (50) Barber (45) Saint-Gaudens (43)

Type Numismatic (5) Bullion (3) Semi-Numismatic (1)

Grade Brilliant Uncirculated (11) Proof (7) Ungraded (2) Mint State (1)

Year 2012 1908 2019 2014 1996 2026 (9) 2025 (7) 2024 (6) 2023 (4) 2022 (3) 2021 (2) 2020 (3) 2018 (4)

Weight 1/10 oz (2) 1/4 oz (5) 1/2 oz (5) 1 oz (5) 5 oz (1) 10 oz+ (3)

IRA IRA Eligible (13)

21 coins · showing 1–21

Active Science Explained Sovereign Silverback Gorilla Koala 2012 1908 2019 2014 1996 Clear all

Fair Market Value — each price is the live metal spot price plus a numismatic premium, spot updated Aug 6, 2026 04:23 UTC. It is a reference valuation, not a dealer buy or sell quote.

Gold

2012 Australia 1/25 oz Gold Koala Proof (No Box/COA)

2012 · 0.0400 troy oz · .9999 fine

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Gold

1996 Great Britain Gold 2 Sovereign Elizabeth II PF-69 UCAM NGC

1996 · 0.4710 troy oz · .917 fine

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Platinum

2019 Australia 1/3 oz Platinum Humpback Whale Coin BU

2019 · 0.3300 troy oz · .9995 fine

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Silver

2014 AUS 5 oz Silver Koala NGC PF-70 UC HR (holder abrasions)

2014 · 5.0000 troy oz · .999 fine

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Gold

1908-P Australia Gold Sovereign Edward VII BU

1908 · 0.2354 troy oz · .9167 fine

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Gold

1908-S Australia Gold Sovereign Edward VII BU

1908 · 0.2354 troy oz · .9167 fine

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Silver

2019 Republic of Congo 1 oz Silver Silverback Gorilla (Prooflike)

2019 · 1.0000 troy oz · .999 fine

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Gold

2019 Great Britain Gold Double Sovereign Proof (Piedfort)

2019 · 0.4708 troy oz · .9167 fine

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Gold

2012 Tristan Da Cunha Gold Dble Sovereign Regent & Lion PF-69 NGC

2012 · 0.4718 troy oz · .9167 fine

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Gold

2012 Australia 1/10 oz Gold Koala Proof

2012 · 0.1000 troy oz · .9999 fine

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Gold

2012 Australia 1 oz Gold Koala Proof (High Relief, Box & COA)

2012 · 1.0000 troy oz

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Silver

2012 Australia 1 kilo Silver Koala (Light Abrasions)

2012 · 32.1500 troy oz · .999 fine

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Silver

2014 Australia 1 oz Silver Megafauna Diprotodon Proof

2014 · 1.0000 troy oz · .999 fine

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Gold

2014 Great Britain Gold Sovereign BU

2014 · 0.2354 troy oz · .9167 fine

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Silver

2014 Australia 1/2 oz Silver Koala BU

2014 · 0.5000 troy oz · .999 fine

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Silver

2014 Australia 1 oz Silver Koala BU

2014 · 1.0000 troy oz · .999 fine

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Silver

2014 Australia 1 kilo Silver Koala BU

2014 · 32.1500 troy oz · .999 fine

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Gold

2012 Great Britain Gold Sovereign Diamond Jubilee BU

2012 · 0.2354 troy oz · .9167 fine

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Silver

2012 Australia 1 kilo Silver Koala BU

2012 · 32.1500 troy oz · .999 fine

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Silver

2012 Australia 1 oz Silver Koala BU

2012 · 1.0000 troy oz · .999 fine

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Silver

2012 Australia 1/2 oz Silver Koala BU

2012 · 0.5000 troy oz · .999 fine

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