Nicholas I copper Proof Novodel 1/4 Kopeck 1840 PR64 Red and Brown NGC, St. Petersburg mint, KM-N544, Bit-H942 (R3). Variety with plain edge and no mintmark. Obv. Crowned monogram of Nicholas I. Rev. Date and value. Reddish-brown patina over mirrored fields. The strike is bold and light marks are noted on both sides. Very rare.

HID09801242017

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