1917-S Walking Liberty Half Dollar. Obverse Mintmark. MS-63 (NGC).A boldly to sharply struck example with light toning to billowy satin luster. As a product of the San Francisco Mint with a limited mintage of 952,000 pieces, it should come as no surprise to read that the 1917-S Obverse Mintmark is one of the rarest Walking Liberty half dollars in Mint State. This is a lovely Choice survivor that is sure to please the specialist.From the High Rise Collection.