No coins were minted bearing the date 1975 in preparation for the forthcoming Bicentennial coins. To compensate for this void, 1974-dated quarters were produced through 1975 which is one reason why the total yearly mintage was one of the highest ever for quarters to that time. (Bicentennial quarters, which were also were minted in 1975, had a total mintage of 1.6+ billion which was the second highest ever to date.)
Varieties: 1974-S/S Proof. Obvious doubled mintmark. (Breen-4445)
Mintage:
| Philadelphia | Denver | San Francisco |
| 801,456,000 | 353,160,300 | 2,612,568 |