Brazil
Maria I gold 6400 Reis 1798-R MS62 NGC, Rio de Janeiro mint, KM226.1, LMB-O536. Double struck, this example displays light doubling of Maria's bust outline as well as the date and the leftmost portions of the obverse legend. Relatively minor as far as errors go, but still quite rare.
HID02901242017
Estimate: 800-1200 USD