Watch List notes:

Halfcrown 1831 Plain Edge Proof, WW in block, ESC 657, Bull 2473, Davies 320, dies 1A, obverse with small edge beads, retaining much original lustre and frosting, in an LCGS holder and graded LCGS 85, the joint finest known of 5 examples thus far recorded by the LCGS Population Report

Estimate: 4000-5000 GBP