Poland
People's Republic gold Proof Proba "Tadeusz Kosciuszko" 500 Zlotych 1976-MW PR68 Ultra Cameo NGC, Warsaw mint, KM-Pr289, Parchimowicz-454a. Mintage: 300.
https://coins.ha.com/itm/poland/poland-people-s-republic-gold-proof-proba-tadeusz-kosciuszko-500-zlotych-1976-mw-pr68-ultra-cameo-ngc-/a/61298-25302.s?type=DA-DMC-CoinArchives-WorldCoins-61298-11272022
HID02906262019
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