The United States Mint has used a variety of facilities since it was founded in 1792. A lot of coins that do not have mintmarks were minted by the Philidelphia mint. Between 1965 and 1967, no mint marks were used.
| Mark | Facility | Dates (AD) |
| C | Charlotte Mint Charlotte, NC |
1838 - 1861 |
| CC | Carson City Mint Carson City, NV |
1870 - 1893 |
| D | Denver Mint Denver, CO |
1906 - Present |
| D | Dahlonega Mint Dahlonega, GA |
1838 - 1861 |
| O | New Orleans Mint New Orleans, LA |
1838 - 1861 1879-1909 |
| P | Philidelphia Mint Philidelphia, PA |
1792 - Present |
| S | San Francisco Mint San Francisco, CA |
1854 - Present |
| W | West Point Mint West Point, NY |
1983 - Present |
Designer / Engraver Marks on the United States Coins
| Mark | Designer | Coins |
|---|---|---|
| AM | Alfred Maletsky | 2004 Nickel, Statehood Quarters |
| CLV | Charles L. Vickers | Statehood Quarters |
| DE | Don Everhart | Statehood Quarters, 2005 Nickel, Presidential Dollars |
| DRW | Dennis R. Williams | Bicentennial Dollar |
| DW | Donna Weaver | 2005 Nickel |
| EZS | Edgar Z. Steever | Statehood Quarters |
| FG | Frank Gasparro | Eisenhower Dollar, Susan B. Anthony Dollar, Lincoln Cent, Kennedy Half Dollar |
| FS | Felix Schlag | Jefferson Nickel |
| JF | Joe Fitzgerald | 2005 Nickel |
| JI | Joel Iskowitz | 2009 Lincoln Cent, Presidential Dollars, Statehood Quarters |
| JL | Jim Licaretz | Presidential Dollars, 2009 Lincoln Cent |
| JLA | Jack L. Ahr | Bicentennial Quarter |
| JFM | Joseph F. Menna | Statehood Quarters, Presidential Dollars, 2010 Lincoln Cent |
| JM | John Mercanti | Silver Eagle, Statehood Quarters |
| JNF | Jamie N. Franki | 2005/2006 Nickel |
| JS | John R. Sinnock | Roosevelt Dime |
| NEN | Norman E. Nemeth | 2004/2005 Nickels |
| PH | Pheobe Hemphill | OK Statehood Quarter, Presidential Dollars |
| RM | Richard Masters | 2011 Sacagawea Dollar |
| SG | Susan Gamble | Presidential Dollars |
| SGH | Seth G. Huntington | Bicentennial Half Dollar |
| Tc | Thomas Cleveland | 2010 Sacagawea Dollar |
| TDR | Thomas D. Rogers | Sacagawea Dollar, Statehood Quarters |
| TJF | T. James Ferrell | Statehood Quarters |
| VDB | Victor David Brenner | Lincoln Cent |
| WC | William Cousins | Statehood Quarters |