1892 Liberty Nickel. Proof-67 Cameo (PCGS).;Delicate reddish-gold iridescence blankets both sides and yields to an oval-shaped swirl of powder blue in the center of the obverse. The strike is full, and cameo contrast between satiny devices and mirrored fields is unmistakable. Expertly preserved, as well, it is little wonder that this beautiful Superb Gem numbers among the finest certified survivors from a mintage of 2,745 Proofs.