1868 Liberty Seated Half Dollar. Proof-64+ (PCGS). CAC.;This mostly silver-tinged Proof half dollar exhibits splashes of mottled olive-gray, steel-blue, cobalt blue and rose-orange iridescence. Uniformly mirrored in finish, both sides are fully struck and exhibit premium Choice quality. This very attractive survivor of a challenging early Liberty Seated Proof issue is among the finest graded by PCGS.;From our (Stacks) sale of the John Work Garrett Collection for The Johns Hopkins University, March 1976, part of lot 302.