Something that’s a dime a dozen is easy to come by, and not particularly special, rare or valuable. “Obviously, at a point, it just means cheap,” Adams says.

Other dimes missing their mint marks have sold for upwards of $22,000, Stack’s Bowers shows. Though most, according to a report from GOBankingRates, tend to sell for a few hundred dollars.

One such dime sold for $2.16 million in January, Heritage Auction’s records show. It previously sold for nearly $1.998 million in 2016.