Product Details

1979-S Type I Proof Washington Quarter, struck at the San Francisco Mint. This coin features the original Type I “Filled S” mint mark, distinguishing it from the later, sharper Type II variety. Produced for collectors, this proof coin was specially struck using polished dies and planchets, resulting in frosted devices and deep mirror-like fields. It’s a beautiful example of early modern U.S. proofs — perfect for completing a Washington Quarter or Type Set. Details: Year: 1979 Mint Mark: S (San Francisco) Type: Type I (“Filled S”) Denomination: Quarter Dollar (25¢) Composition: Copper-Nickel Clad Strike: Proof Condition: Please see photos for exact coin condition Notes: The 1979-S Type I proof quarter is a collector favorite for its historical significance and mint mark variation. An excellent addition for both proof and Washington quarter enthusiasts.