Russia
Alexander II 20 Kopecks 1874 CПБ-HI MS67 NGC, St. Petersburg mint, KM-Y22a.1. Bit-225, Uzd-1899. A tremendous example of the type, and certainly among the finest extant, with blazing white surfaces and no discernable marks. Quite possibly struck with a trial edge, as close inspection shows the addition of numerous stars over the customary milling.
Estimate: 1000-1500 USD