1879 Shield Nickel. Proof-67 Cameo (PCGS). CAC.This is an awe-inspiring Superb Gem that sports full striking detail and bold field to device contrast on both sides. Delicate iridescent gold is largely confined to the reverse, leaving the obverse essentially brilliant. An outstanding condition rarity from a mintage of 3,200 Proofs, this coin would do equally well in a high grade specimen type or date set.