Mauritius
British Colony. Victoria Proof 20 Cents 1877 PR63 NGC, Royal mint, KM11.1, plain edge. As with the previous 1877 10 Cents, this issue is only struck in Proof. Mottled gray and black toning over mirrored fields. Ex. Spink auction 6032, November 29, 2006, Lot 602, where it sold for $634. A very rare issue.
HID02901242017
Estimate: 800-1000 USD