Medellin, Colombia, 5 decimos, 1889, "mulatta" head, fineness 0.500, rare, NGC XF 45. Restrepo-403.2; KM-166. Attractively rainbow toned around details, with a few small marks and partially crude rims (as made), the rarer final date of this two-year issue with distinctive effigy, one of just two at NGC (which only refers to its KM number, not its Colombian nickname, for obvious reasons).
Estimate: 400 - 600 USD
Note: printed version of the catalog shows the incorrect photo.