Russia
R.S.F.S.R. silver Proof 10 Kopecks 1923 PR67 Cameo NGC, Leningrad mint, KM-Y80. Showcasing hard mirrored fields with a lightly mottled, reddish patina, this brilliant Proof presently stands as one of just two PR67's at NGC, with the other ranking only slightly finer by its Ultra Cameo designation. Very rare in this pristine condition.
Ex. D. Moore Collection
https://coins.ha.com/itm/russia/russia-rsfsr-silver-proof-10-kopecks-1923-pr67-cameo-ngc-/a/3085-31958.s?type=CoinArchives3085
HID02906262019
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Estimate: 1500-2000 USD