1967 SMS Proof

The 1967 SMS quarter is the final-year piece of the Special Mint Set program that ran 1965 to 1967, with a recorded mintage of 1,863,344 pieces and the lowest figure of the three-year SMS run. The decline tracked the steady softening of SMS demand as the initial collector enthusiasm of 1965 faded across the program. Regular proof production resumed in 1968 with the new obverse-mintmark scheme that placed the mintmark right of Washington's hair queue, ending the SMS interlude and the mintmark suspension that had defined coin output across the silver-shortage years. The issue bears no mintmark despite San Francisco origin, in line with the Treasury's 1965 to 1967 mintmark-suspension policy. Composition is the cupronickel clad standard: 75 percent copper and 25 percent nickel bonded to a pure-copper core at 5.67 grams. The companion 1967 SMS half dollar carries the 40 percent silver-clad composition, but the quarter and dime remained clad throughout the SMS run.

Authentication on this issue runs through the satin specimen finish, with more reflective fields than a circulation strike but without the deep mirror of a brilliant proof, full strike detail across Washington's hair and the eagle reverse, and the squared rim that separates a specimen strike from a business strike. The weight test settles composition cleanly at 5.67 grams against any 6.25-gram silver piece. PCGS, the Professional Coin Grading Service, and NGC, the Numismatic Guaranty Company, both attribute SMS examples using the SP (Specimen) grade prefix rather than the PR grade applied to true brilliant proofs. The 1967 SMS dies were prepared with somewhat more attention to Cameo, the strong contrast between fields and frosted devices, than the 1965 to 1966 issues, so Cameo and Deep Cameo SMS examples appear at a meaningfully higher rate for the final year than for the earlier two.

In the modern collecting landscape, the 1967 SMS quarter is the low-mintage anchor of the 1965 to 1967 SMS short set and the only SMS-finish member to carry consistent premiums above its neighbors at every grade tier. Most surviving examples grade SP66 through SP68, with the meaningful pricing break at SP68 and above and a separate Cameo or Deep Cameo tier sitting well above brilliant pieces at the same numeric grade. The audience runs to year-set builders pulling the mid-1960s mintmark-suspended years together, registry collectors chasing top-pop Specimen Cameo grades, and Washington specialists who treat the date as the formal close of the SMS program. For the broader story of John Flanagan's design and the series' proof program, see the Washington Quarter series history.