Watch List notes:

Halfcrown 1831 WW in script Plain Edge Proof ESC 658, unlisted by Bull, UNC in an LCGS holder and graded LCGS 82, this type a lot scarcer than the W.W. block Plain edge Proof coin of the same date, the finest known of just 2 examples thus far recorded by the LCGS Population Report

Estimate: 3200-3600 GBP