Watch List notes:

Bogota, Colombia, 50 centavos, 1888, PCGS AU55, ex-Eldorado. Restrepo-406.1; KM-186.1. Practically no wear (looks like AU58 or better in our opinion), muted luster and very light toning, desirable pedigree. PCGS #84929727. Pedigreed to the Eldorado collection (Stack's Bowers auction of August 2018, lot #44445 with original lot tag).
($150-225)