Error Explorer
Is my penny worth anything? Explore real errors, play the game, compare, or check a date.
Is my penny worth anything? Here's where to look.
Real photos of the famous errors. Tap a numbered hotspot to learn what it is and what it sells for.
Learn more
Enter a cent's date (1856–2025) and mint mark. You get the valuable varieties for that year. Then explore real photos of the famous errors: tap the hotspots on the actual defect, magnify it, compare it with a normal coin, and see sourced prices by grade.

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Find the error
Every coin here is a real photo from a public-domain or openly licensed source (credits). Prices appear only where a public source is cited, with its date; ranges are approximate. Not yet photographed with a licensed image: 1972 doubled-die obverse, 1983 doubled-die reverse, 1992 Close AM, 1984 doubled ear, BIE die breaks, die cracks and cuds, 1943 bronze, 1958 doubled-die obverse, 1922 No D.
Quick quiz: what's a circulated example worth?