Watch List notes:

BRITISH COINS, Commonwealth, Silver Halfcrown, 1656, English shield within laurel and palm branches, initial mark sun, legends in English surrounding, outer beaded circle both sides, rev shields of England and Ireland, with value above, all within beaded circle, date and legend surrounding, 14.42g (ESC 437; Bull 49; N 2722; S 3215). Toned with a patina from the River Thames mud, some flecking, about extremely fine.

Estimate: £1000-1200