Watch List notes:

Victoria (1837-1901), Proof Halfcrown, type A1, 1862, young head left, one ornate and one plain fillet, w. w. in relief on truncation, rev. en médaille, crowned shield in wreath, eight strings to harp, edge plain, 14.07g (ESC 2738 [R2] {689}; S.3888), attractive tone overlying brilliant surfaces, the slightest of cabinet friction, otherwise as struck, very rare.
provenance
Purchased Spink, July 2006 (via M Rasmussen)
Estimate: £5000 - £6000