1937 Walking Liberty Half Dollar. Proof-68 (PCGS).,Significant Condition Census quality for the second rarest issue in the brief Proof Walking Liberty half dollar series of 1936 to 1942. Fully struck and reflective surfaces are dusted with delicate iridescent gold toning that provides strong eye appeal. Virtually pristine, as befits the assigned grade, it is difficult for us to imagine a more desirable survivor from a mintage of 5,728 Proofs. Beautiful!,PCGS# 6637. NGC ID: 27V5.,PCGS Population: 11; 0 finer.,From the Alexander Collection.