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Coin Errors & Varieties
Compare real specimens, then find a guide to identify the feature on your coin.
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1969 Penny Errors & Value: Doubled Die, No Mint Mark, D and S
Compare ordinary 1969 penny values with the rare 1969-S doubled die, using mint marks, real photos and dated red-grade prices.
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1983 Penny Value: No Mint Mark, D, Doubled Die and Copper Errors
Check 1983 Lincoln penny values by grade and variety. See which reverse letters reveal a doubled die and when an unusual weight merits a copper-planchet check.
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Jovita Idar Quarter Error Checks: Hidden Lettering, Damage and Value
Read the words in the 2023 Jovita Idar quarter design, compare P, D and S versions, and separate genuine mint errors from normal blank space and damage.
