Russia
Nicholas II Proof 50 Kopeks 1910 ЭБ, St. Petersburg mint, Bitkin-89 (R), KM-Y58.2, PR65 NGC. Obv. Bust left. Rev. Crowned double-headed Imperial eagle with date and value. A superb Proof example with silver patination accented by red and blue opalescence. A stunning, multi-colored Gem and the only Proof example we have seen since the sale of the Irving Goodman Collection. Very Rare. This is the single finest Proof example certified by NGC. Ex: Sincona Collection, Part 1, October 9-12, 2012, Lot 1654.
Estimate: 20000-25000 USD