Watch List notes:

Halfcrown 1840 ESC 673, Bull 2715 NEF/GEF the obverse lightly toned with some contact marks, the reverse with much original mint lustre, Halfcrowns of 1839 and 1840 are the only dates with W.W on the truncation, and given the rarity of the 1839 coin, the 1840 is often collected as a popular type coin

Estimate: 300-600 GBP