Historical United States mints

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The following is a list of United States mints, past and present:

Location Years of operation Mint mark Notes
Philadelphia, Pennsylvania 1793– P or none Pennies and other coins struck prior to 1980 do not carry Philadelphia mint marks, except for Susan B. Anthony dollars and wartime Jefferson nickels. Although the mint officially opened in 1792, no regular issue coins were struck until 1793.
Charlotte, North Carolina 1838–1861 C gold coins only
Dahlonega, Georgia 1838–1861 D gold coins only
New Orleans, Louisiana 1838–1909 O There was a long break in production from the beginning of the Civil War (1861) until the end of Reconstruction (1879).
Carson City, Nevada 1870–1893 CC
San Francisco, California 1854– S or none Since 1975, strikes only proof coinage, except for the Susan B. Anthony dollar.
Denver, Colorado 1906– D
West Point, New York 1973– W or none Commemorative coins bear the W mint mark; circulating coins are indistinguishable from coinage struck in Philadelphia.
Manila, Philippines 1920–1922
1925–1941
M or none The first (and to date only) U.S. branch mint located outside the Continental United States. Produced coinage in centavo denominations for Philippines circulation.

From 1965 to 1967 all U.S. coins were struck without mint marks. As it was clear from Gresham's law that the rising cost of silver (and the ensuing removal of most silver from coinage in 1965) led to hoarding or even melting of silver-based pre-1965 coins, overzealous collection of specific mint marks of those years by numismatists almost certainly would have exacerbated those shortages.

Pioneer coinage, tokens, private issue coins and paper money do not have official mint marks.

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