Russia
Nicholas II Proof Rouble 1907-ЭБ PR66 PCGS, St. Petersburg mint, KM-Y549.3, Bit-61. Obv. Bust of Nicholas II left. Rev. Crowned double-headed eagle with date and value. Well struck, with fully mirrored fields and surfaces free of significant marks. The obverse, and reverse, have an interesting mix of purple, blue, and gold toning. Only one example has been certified finer by PCGS and NGC combined.
HID02901242017
Estimate: 18000-22000 USD