Russia
USSR gold Matte Proof 100 Roubles 1978-(I) 1978 PR69 NGC, St. Petersburg mint, KM-Y162. Variety with date below the waterslide grandstand. Obv. National arms. Rev. Waterside grandstand. Flawless matte surfaces.
https://coins.ha.com/itm/russia/russia-ussr-gold-matte-proof-100-roubles-1978-i-1978-pr69-ngc-/a/3089-33198.s?type=CoinArchives3089
HID02906262019
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Estimate: 1000-1500 USD