France
François I gold Écu d'or au soleil ND (1515-47), Bayonne mint, Fr-347/349, Duplessy-777/775, MS61 NGC. A lustrous example with the Anchor mintmark of Bayonne and minor reverse deposits. The obverse and reverse legends are a match for Duplessy-777, except the reverse fields bear two F's and two Lis rather than just four F's.
Estimate: 800-1200 USD