Watch List notes:

Elizabeth II, crown, 1960, plain edge, struck without collar, laur. head r., rev. crown in centre of emblematical cross, shield of arms in each angle (cf. S.4143; cf. ESC.393K), practically as struck, extremely rare The only example we have ever come across, and in fact pre-Churchill misstruck crowns are almost never seen.

Estimate: £200-300