Watch List notes:

BRITISH COINS, Irregular issues, Halfcrown, 1644, a contemporary imitation, silver plated, in the style of the Oxford mint, mm. eye (?) on obv. only, king on horseback left, plume in field behind, rev. Declaration, three plumes above, date between pellets below, 12.36g/11h (cf. SCBI Brooker 1211; cf. N 2424; cf. S 2958A). Fair, very rare £100-150