Russia
Elizabeth Poltina (1/2 Rouble) 1752 СПБ-IM XF Details (Environmental Damage) NGC, St. Petersburg mint, KM-C18.4, Bit-317 (R). Ample details still remains on the offering despite the noted environmental damage in the form of heavy porosity and a subsequent cleaning, having retoned towards the peripheries to a mellow iridescence.
https://coins.ha.com/itm/russia/russia-elizabeth-poltina-1-2-rouble-1752-and-1057-and-1055-and-1041-im-xf-details-environmental-damage-ngc-/a/61254-98155.s?type=DA-DMC-CoinArchives-WorldCoins-61254-01232022
HID02906262019
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Estimate: 200-300 USD