Russia
Catherine II Rouble 1779 CПБ-ФЛ AU55 NGC, St. Petersburg mint, KM-C67b, Bit-227. Extremely light gray patina, with full underlying luster. Minor spotting, and marks, with virtually no apparent rubbing on any of the high points.
https://coins.ha.com/itm/russia/russia-catherine-ii-rouble-1779-cand-1055-and-1041-and-1060-and-1051-au55-ngc-/a/61307-98125.s?type=DA-DMC-CoinArchives-WorldCoins-61307-01302023
HID02906262019
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Estimate: 600-800 USD