Russia
Russian Federation gold Proof "Ballet" 50 Roubles 1996-(l) PR68 Ultra Cameo NGC, Leningrad mint, KM-Y487. Mintage: 2,500. AGW 0.2499 oz.
https://coins.ha.com/itm/russia/russia-russian-federation-gold-proof-ballet-50-roubles-1996-l-pr68-ultra-cameo-ngc-/a/61257-90143.s?type=DA-DMC-CoinArchives-WorldCoins-61257-02132022
HID02906262019
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