Watch List notes:

Halfcrown 1953 Proof. Obverse 1 Reverse A. Obverse 1 :- I of DEI points to a space, weakly struck portrait, a Proof version of the early portrait (used in the plastic set) of Davies 2310 (the standard proof is Davies 2311) this piece listed as 'to be confirmed' by Davies and extremely rare and reported to be one of only a few known, UNC and lustrous with a few surface marks

Estimate: 375-425 GBP