Russia
Nicholas II Proof 20 Kopecks 1901 CПБ-AP PR65 Cameo NGC, St. Petersburg mint, KM-Y22a.1, Bit-101 (R2), 10 Roubles according to Iljin. Obv. Crowned double-headed eagle with orb and scepter. Rev. Crowned date and value in wreath. Fully brilliant, with deeply mirrored fields and heavily frosted devices. This very rare issue appears to have been struck only in Proof.
HID02901242017
Estimate: 6000-7000 USD