Watch List notes:

Costa Rica, 50 centavos, "lion" double countermark (Type VII, 1889) on a Bogota, Colombia, 50 centavos, 1884, encapsulated NGC AU 58 c/s UNC strong, finest known in NGC census. KM-134.1. Faint rainbow toning over muted luster, minimal marks, the countermark 100% unworn and perfect. NGC #2728997-005.
($300-450)