Watch List notes:

William III (1694-1702), Halfpenny, 1701, third issue, gvlielmvs tertivs, inverted as for vs, rev. britannia, inverted vs for as (BMC [Peck] 705, {same dies}; S.3556), an edge nick to reverse 1 o'clock, the legend errors nevertheless extremely clear, good fine thus, very rare.
provenance
Dr T Aitken, collection purchased en bloc by Cooke, 1996
Estimate: £180 - £220