Costa Rica, 50 centavos, 1886GW, encapsulated NGC MS 61, finest known in NGC census, ex-Richard Stuart (stated inside slab). KM-124. Lustrous fields with light surface hairlines, rainbow toned in legends, full and choice strike, tops at NGC by two grades. NGC #4427849-009. Pedigreed to the Richard Stuart collection. (Estimate: $600 - 900)