Watch List notes:

Colombia (struck at the Heaton mint, Birmingham, England), proof silver pattern 10 centavos, 1900, very rare, NGC PF 64, finest and only example in NGC census. Restrepo-76 (p. 254); KM-Pn80. With raised rims and bold details against smooth fields, this is more properly a specimen strike (therefore superior to the Eldorado example), with deep magenta / gold toning over high luster, no marks or wear. NGC #4668518-003.
(800 - 1200 USD)