Colombia
Republic copper Pattern Proof Centavo 1886 PR64 Red and Brown ANACS, KM-Pn70. This is a rare Pattern of an unissued denomination by Scovill Manufacturing Co. of Connecticut, pairing the 5 Centavos obverse with a new 1 Centavo reverse; the 5 centavos obverse was used for the adopted coinage in 1886, 1888 and 1902 (KM183.2). This example is finer than the Dana Roberts specimen that realized $940.
Estimate: 700-900 USD