Watch List notes:

BRITISH COINS, Charles I, Silver Halfcrown, Tower Mint, group II, type 2c, King on horseback left with upright sword, cross on housings, rev garnished oval quartered shield of arms dividing C R, initial mark harp both sides, 14.81g (cf Brooker 310-314; N 2205; S 2771). Weak on kings head, good detail, even grey tone, very fine, reverse better.

Estimate: £220-260