1872 Liberty Seated Half Dollar. Proof-65+ (PCGS).;This Gem Proof 1872 half dollar, ideal for a PCGS Registry Set, features wonderful antique copper, cobalt blue, sandy-apricot and pale gray toning that is bolder on the obverse. The strike is sharp and the finish is nicely mirrored. High grade survivors from the mintage of 950 Proofs are rarer than the more eagerly sought Proof Liberty Seated half dollars of the 1879 to 1891 era. An important bidding opportunity for the astute collector.;From our (Stacks) sale of the John Work Garrett Collection for The Johns Hopkins University, March 1976, part of lot 306; our (Stacks) session of Auction 81, July 1981, part of lot 1674.