France
Napoleon III gold Proof Essai 5 Francs - 25 Francs 1867 PR63 NGC, Paris mint, KM-E29, Maz-1745 (R4). By Barre. Well struck and fully brilliant, with sparkling reflectivity on both sides as a result of significant die polish lines in the field. Light handling, as is allowed for by the grade, is observed, but no instances are egregious, or attract much of eye's attention. A coin that should certainly attract a wide range of buyers.
Estimate: 8000-10000 USD