What this coin looks like (obverse, reverse, mint mark location, special features, etc.):
1968 S Washington Quarters were struck only as Proof coins. This is also the year when the "S" mintmark was first moved from the reverse of the coin to the obverse.
Coin valuation chart: Typical coin prices, values and worth per grade or condition - in USD. Numismatic portion of the values last updated February 2026, precious metal portion of the values is updated live!