Coins listed here are not only key dates; they are rarities, often counterfeited. Articles below share markers for authentic coins. You will be able to identify fake ones and replicas flooding the market.

Markers for 1916-D Dime

Markers for 1877 Indian Cent

Markers for 1955 Doubled Die Obverse

Missing v. Philadelphia Mint Marks

The Philadelphia Cent That Isn’t

Identifying 1944-P/D/S Steel Cents

Rare 1965 Transitional Errors

Identifying Counterfeit 1889-CC Morgans

Counterfeit PCGS 1893-S Morgan

Identifying Fake 1909-S VDB Cents

Fake 1914-D Cents

Deceptive 1916-D Mercury Dimes

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Markers for 1932-D and S Quarters

The 1936-D 3 1/2 Leg Rarity

Counterfeit 1943 Copper Cents

1942/1 and 1942/1-D Key Date Dimes

Dubiously Illusive 1969-S DDO

Close/Wide AM Lincoln Cent Varieties