Czechoslovakia
Republic silver Proof "Founding 50th Anniversary" Medal 1968 PR67 Ultra Cameo NGC, KM-Unl. 35mm. 20.0gm. Designed by Jiri Harcuba during the 1968 invasion and occupation of the Republic by the Soviet Union.
https://coins.ha.com/itm/czechoslovakia/czechoslovakia-republic-silver-proof-founding-50th-anniversary-medal-1968-pr67-ultra-cameo-ngc-/a/61294-25090.s?type=DA-DMC-CoinArchives-WorldCoins-61294-10302022
HID02906262019
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