Monaco
Rainier III gold Specimen Pattern Essai 10 Francs 1966-(a) SP69 PCGS, Paris mint, KM-E57, Gad-MC155. Charles III commemorative. Mintage: 1,000. Exhibiting deeply watery fields and frosty devices, a Specimen issue presently offered as the finest grade recorded by the two major grading companies.
https://coins.ha.com/itm/monaco/monaco-rainier-iii-gold-specimen-pattern-essai-10-francs-1966-a-sp69-pcgs-/a/3099-32276.s?type=DA-DMC-CoinArchives-WorldCoins-3099-05052022
HID02906262019
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