1921-S Walking Liberty Half Dollar. MS-63 (NGC). CAC.This is a lightly toned, highly desirable example of the 1921-S half dollar, a leading rarity among Mint State Walking Liberty half dollars. Delicate silver and pale gold iridescence enhances bold to sharp definition throughout the design. The appearance is smooth and appealing, even more so than one might expect at the assigned grade level. Although the 1916-S, 1921, 1921-D and 1938-D all have lower mintages, the 1921-S (548,000 pieces produced) is the rarest half dollar of this type in terms of total number of Uncirculated coins known. Fewer examples were saved than those of the 1921 and 1921-D, leading some numismatic scholars to speculate that this issue somehow escaped the attention of contemporary dealers and collectors. This is a particularly inviting survivor, fully Choice in quality and worthy of inclusion in an advanced Walking Liberty half dollar set.From the High Rise Collection.