Watch List notes:

A COLLECTION OF BRITISH COINS, SILVER, Charles I, Silver Halfcrown, Tower mint, group III, type 3a2, king on horseback left with upright sword and cloak, initial mark anchor (1638-1639) both sides, flukes right, rev oval quartered shield of arms, initial mark with flukes left, 14.87g (cf Bull 327a/23; cf Brooker 342; N 2211; S 2775). Evenly round, about very fine, toned, similar obverse die in Bull but reverse die unrecorded.

Estimate: £150-200