1870 Two-Cent Piece. Proof-66+ RB (PCGS). CAC. Gorgeous semi-reflective surfaces exhibit minimal iridescent toning to otherwise full bright orange mint color, and then again only at indirect lighting angles. The design elements are fully struck. Expertly preserved and visually appealing, this coin would do justice to the finest Proof type or date set. One of an estimated 1,000+ examples of this late date in the two-cent series struck in the Proof format. Premium Gem Proofs are scarce and very few examples of the date come close to the magnificent nature of the present coin. PCGS# 3643. NGC ID: 274Z. PCGS Population: 3; 0 finer in this category.CAC Population: 19; 0. The former total includes coins certified both Proof-66 RB and Proof-66+ RB.