France
Republic gold Proof Piefort 10 Francs 1977 PR69 NGC, KM-P589. Mintage: 43. A virtually unimprovable example of this double-weight issue, produced in a mintage of only 43. Tied for finest certified across both PCGS and NGC. AGW approx. 1.15 oz.
https://coins.ha.com/itm/france/france-republic-gold-proof-piefort-10-francs-1977-pr69-ngc-/a/3081-30572.s?type=CoinArchives3081
HID02906262019
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Estimate: 2000-3000 USD