1638-9 Charles I type 3a2 mm anchor halfcrown.
Charles I (1625 - 49). Tower Mint under the King (1625 - 49) Halfcrown, type 3a2 , late third horseman , no caparisons on horse, king wears cloak flying from shoulder CAROLVS D G MA BR FR ET HI REX rev. Oval garnished shield, CHRISTO AVSPICE REGNO, mm. Anchor [1638-9] (S.2775; N.2211; Bull 333/23 - this coin) - weight 15.13 grams
Bought M Rasmussen 2004
A bold almost very Fine, the reverse better.