Watch List notes:

Charles II (1660-85), Halfcrown, 1666 over 3 or 4 xviii, draped and laureate bust right, rev. crowned shields cruciform, cypher in angles (ESC 446 {461}; S.3363), peripheral weakness, otherwise almost fine, the reverse the better, very rare
Spink Numismatic Circular, February 2006, MS 6991

Estimate: £800.00-£1,000.00