Russia
Catherine II copper 5 Kopecks 1790-EM MS63 Brown NGC, Ekaterinburg mint, KM-C59.3, Bit-644. Coffee colored patina, with lustrous surfaces.
https://coins.ha.com/itm/russia/russia-catherine-ii-copper-5-kopecks-1790-em-ms63-brown-ngc-/a/61307-98104.s?type=DA-DMC-CoinArchives-WorldCoins-61307-01302023
HID02906262019
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Estimate: 200-250 USD