Russia
Alexander II Proof 25 Kopecks 1857 CПБ-ФБ PR63 Cameo NGC, St. Petersburg mint, cf. KM-C166.1 (Proof unlisted), cf. Bit-55 (same). Edge dotted. Exhibiting a bold flash across the steely fields at the turn of the wrist and appreciable frosting on the raised motifs. Occurring only sparsely in auctions, we note a PF64 Cameo example selling elsewhere in November 2018, and quick research revealed no recorded sales since.
https://coins.ha.com/itm/russia/russia-alexander-ii-proof-25-kopecks-1857-cand-1055-and-1041-and-1060-and-1041-pr63-cameo-ngc-/a/3107-31798.s?type=DA-DMC-CoinArchives-WorldCoins-3107-05032023
HID02906262019
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