1943-S Walking Liberty Half Dollar. MS-67 (PCGS).An otherwise brilliant obverse exhibits a partial crescent of mottled copper-russet toning around the periphery. More extensively patinated, the reverse exhibits reddish-copper peripheral toning around a center that alternates between light olive and silver gray. Satin to softly frosted in finish with expectably smooth surfaces for the assigned grade. One of the more challenging late date Walking Liberty half dollars to locate in Mint State, the 1943-S is the fourth rarest issue in the short set after the 1942-D, 1942-S and 1943-D.