Brazil
Pedro II copper Pattern 400 Reis 1837 AU Details (Mount Removed) NGC, KM-Pn49. A rather unusual issue, which though designated as a pattern in the SCWC appears more likely to be a sort of jeton, especially as Pedro's bust is not known to have been used on the 400 Reis denomination, the reverse rim additionally somewhat cupped upwards and raised.
HID02901242017
Estimate: 400-600 USD