Scotland, Charles I (1625-49), gold Half-Unit or Double Crown, Nicholas Briot's coinage (1637-42), crowned and draped bust left to bottom of coin, Scottish styled crown on head with central fleur de lis (engraved over an English cross), B below for Briot, Latin legend and beaded borders surrounding both sides, CAR. D: G. MAG. BRIT. FRAN. ET. HIB. REx, small x at end of legend, rev. crowned quartered shield of arms, crowned C with lozenge below to left, crowned R with lozenge below to right, VNITA. TVEMVR. Lozenge stops, weight 4.92g (Burns 6 fig. 1035; S.5534). Light adjustment marks on the breast, hairline scratch on forehead to field, light red patchy tone, otherwise a bold very fine and unusual with the tiny terminal X to legend, rare.