COLOMBIA. 1873 pattern Peso. Medellín mint. Restrepo P52. Silver-plated copper. SP-64 (PCGS).Plain edge. Uniface reverse essai. Lustrous medium gray with deep tan and gold toning around the periphery of the struck side. Exceptionally crisply struck and problem free. There are no indications to the naked eye that this is silver-plated copper and not silver.