Russia
USSR gold Proof 100 Roubles 1978-(l) PR69 Ultra Cameo NGC, St. Petersburg mint, KM-Y162. Variety without date (1978) below the waterslide grandstand. Obv. National arms. Rev. Waterside grandstand. An essentially flawless cameo Proof with superb appearance. Rare.
https://coins.ha.com/itm/russia/russia-ussr-gold-proof-100-roubles-1978-l-pr69-ultra-cameo-ngc-/a/3081-31194.s?type=CoinArchives3081
HID02906262019
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Estimate: 6000-8000 USD