Colombia
Republic gold 8 Escudos 1829-RS AU55 NGC, Bogota mint, KM82.1. The designated grade seems to be a bit conservative given the highly lustrous surfaces, attractive patina, and a pleasing strike. Generally one may not call an AU55 "remarkable" in terms of eye-appeal. However, this example is not your typical specimen.
Estimate: 1600-1800 USD