Monaco
Rainier III gold Proof Piefort Specimen "25th Anniversary of Reign" 50 Francs 1974-(a) SP68 PCGS, Paris mint, KM-P19a, Gad-MC162.
https://coins.ha.com/itm/monaco/monaco-rainier-iii-gold-proof-piefort-specimen-25th-anniversary-of-reign-50-francs-1974-a-sp68-pcgs-/a/61285-98154.s?type=DA-DMC-CoinArchives-WorldCoins-61285-08282022
HID02906262019
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