Historical United States mints
From Wikipedia, the free encyclopedia
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 coins struck prior to 1980 had no 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 | Since 1975, strikes only proof coinage, except for the Susan B. Anthony dollar. |
| Denver, Colorado | 1906- | D | |
| West Point, New York | 1973- | W or P or none | Commemorative coins bear the W mint mark; circulating coins are indistinguishable from coinage struck in Philadelphia. |
Between 1965-1967 all coins were struck without mint marks, in the belief that a coin shortage was due to zealous coin collectors. The real reason was the removal of most silver from the coinage, which led to hoarding of silver-based coins as predicted by Gresham's Law.
Pioneer coinage, tokens, private issue coins and paper money do not have official mint marks.
