Catalog

Coins

Browse 16 matching coins.

Country Australia (10) United Kingdom (5) Republic of Congo (1)

Era Modern (14) Pre-1933 (2)

Series Science Explained Sovereign Silverback Gorilla Koala American Eagle (514) Lunar (105) Maple Leaf (68) Libertad (66) American Buffalo (58)

Type Numismatic (8) Bullion (1) Semi-Numismatic (1)

Grade Brilliant Uncirculated (8) Proof (5) Ungraded (3)

Year 1908 2007 2019 2011 2017 2020 2026 (9) 2025 (7) 2024 (6) 2023 (4) 2022 (3) 2021 (2) 2018 (4) 2016 (2)

Weight 1/4 oz (6) 1/2 oz (2) 1 oz (6) 2 oz (1) 5 oz (1)

IRA IRA Eligible (9)

16 coins · showing 1–16

Active Science Explained Sovereign Silverback Gorilla Koala 1908 2007 2019 2011 2017 2020 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

2020 Australia 2 oz Gold Koala Proof (High Relief)

2020 · 2.0000 troy oz · .9999 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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Gold

2011 Great Britain Gold Sovereign BU

2011 · 0.2354 troy oz · .9167 fine

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Silver

2020 Australia 5 oz Silver Koala Proof (High Relief, w/Box & COA)

2020 · 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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Gold

2020 Great Britain Gold Sovereign BU

2020 · 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

2017 Great Britain Gold Sovereign BU

2017 · 0.2354 troy oz · .9167 fine

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Silver

2011 Australia 1 oz Silver Koala MS-70 NGC (First of 20,000)

2011 · 1.0000 troy oz · .999 fine

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Gold

2011 Tristan da Cunha Proof Gold Double Sovereign Royal Wedding

2011 · 0.4716 troy oz · .9167 fine

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Silver

2011 Australia 1 oz Silver Koala MS-69 NGC (First of 20,000)

2011 · 1.0000 troy oz · .999 fine

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Silver

2011 Australia 1 oz Silver Koala SP-69 PCGS

2011 · 1.0000 troy oz · .999 fine

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Silver

2011 Australia 1 oz Silver Koala BU

2011 · 1.0000 troy oz · .999 fine

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Silver

2007 Australia 1 oz Silver Koala BU

2007 · 1.0000 troy oz · .999 fine

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