James I gold Thistle Crown of four shillings, mm crescent extremely rare mark

James I (1603-25), gold Thistle Crown of Four Shillings, Tower mint, second coinage, crowned stemmed rose, I to left, R to right, Latin legend and beaded borders surrounding, initial mark crescent (1617-18), · IA; D;G; MA; BR; F; ET· H; REX', rev. crowned thistle with leaves, I to left, R to right, Latin legend and beaded borders surrounding, · TVEATVR VNITA · DEVS, weight 1.85g (Schneider 65; North 2096; S.2627). Toned with some light surface marks, a little ragged and chipped at periphery, otherwise weak in parts very fine, an extremely rare mint mark.