Russia
Nicholas I copper Proof Pattern Kopeck 1840-CПБ PR61 Brown NGC, St. Petersburg mint, KM-Pn104, Bit-H934 (R2), Brekke-102. Obv. Crowned monogram. Rev. Date and value, with small C.П.Б. below. A good-looking copper Pattern admitting a few instances of minor contact that appear rather inconsequential as a whole, adorned with an uniform ice-cold veil of pale blue toning on both facets.
https://coins.ha.com/itm/russia/russia-nicholas-i-copper-proof-pattern-kopeck-1840-cand-1055-and-1041-pr61-brown-ngc-/a/3106-34193.s?type=DA-DMC-CoinArchives-WorldCoins-3106-01172023
HID02906262019
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