The 2007-S United States Mint “50 State Quarters” Proof Set contains 5 coins.
Each of the five quarters bears the “S” mint mark of the United States Mint at San Francisco.
The 2007-S set includes (5) Washington quarters honoring:
- Diameter: 24.3 mm
- Edge: Reeded
- Weight: 5.67 grams
- Composition: Outer layers of copper-nickel (.750 copper, .250 nickel) bonded to inner core of pure coppe