Find your coin’s mint mark.

Often it is normal: many Philadelphia issues were unmarked, and mint marks were omitted in 1965–1967. Some recognized missing-mark varieties exist, but the date, strike type and die diagnostics must match. A worn or unclear letter is not sufficient evidence.

The photo is a labelled reference for the same mint-mark location. It is not presented as your coin or as evidence of every version issued in your selected year. Compare the portrait and layout before applying the highlighted location.

No. This guide shows where to look and what letters mean. Altered or added marks, unusual surfaces and valuable varieties require expert examination.

Choose from 24 series and program guides, or search 3751 supplied catalogue records by name, year, mint letter or catalogue code. Use the collector guides for other series.