1921-S Walking Liberty Half Dollar. AU-53 (PCGS).This impressive About Uncirculated coin is a quality example of this low mintage, key date rarity from the early Walking Liberty half dollar series. Boldly defined over most design elements, both sides also retain ample satin luster and show only trivial wear. It is lightly and evenly toned with a pleasant appearance. The 1921-S is the rarest issue of this popular 20th century type in Mint State grades, and it is also highly elusive in the finer circulated grades such as Choice EF and AU. Indeed, the vast majority of survivors from a mintage of 548,000 pieces are well worn and in the AG to VG grade range. This is a noteworthy survivor that is sure to see spirited bidding at auction.