Watch List notes:

Halfcrown 1831 Plain edge Proof with WW in script, with upright die axis alignment, unrecorded by ESC, Davies or Spink however we note that Coincraft lists the piece as W4HC-025 and also Spink lists an 1831 Crown with a similar die axis alignment, FDC or very near so with a deep blue and green tone. Weight 13.74 grammes. Cataloguers note: Coincraft states that these pieces were possibly struck at a later date, indeed, close inspection of the coin shows that the rim is of a wider type and more akin to the later currency pieces 1834-1837 and also states that some of these weigh 'c.13 grammes', We note there was no example of this type in the Colin Adams Collection

Estimate: 4500-6500 GBP