1878 Twenty-Cent Piece. Proof-64 (NGC). CAC. Boldly and originally toned surfaces are awash in deep antique copper, steel-blue, rose and burnt-orange shades. Direct lighting calls forth more vivid undertones, as well as appreciable reflectivity to the finish in the fields. A fully struck and uncommonly well preserved survivor of this scarce Proof-only issue from the final year of the brief twenty-cent series. PCGS# 5306. NGC ID: 27H5. CAC Population: 13; 9.