France
Charles VI (1380-1422) gold Écu d'or à la couronne ND AU58 NGC, Paris mint, 3rd emission, from 11 September 1389, Fr-291, Dup-369B. + KAROLVS : DЄI : GRACIA : FRAnCORVM : RЄX, crowned arms of France / + XPC' * VIИCIT * XPC' * RЄGИAT * XPC' * IИPЄRAT, cross fleurée, a star in the center; all within a quadrilobe with lis at points and crowns in spandrels, a pellet beneath the 18th letter. Lustrous and possessed of a fairly typical strike on a very slightly wavy planchet, the circulation wear is extremely light.
Estimate: 750-1000 USD