Watch List notes:

Henry VII (1485-1509), Halfgroat, class I, muled with reverse die of Richard III, Tower, 1.42g, 9h, m.m. lis upon half-rose [40]/SR2 [39], crowned bust facing, in double-tressure of 9 arches, cusps plain, rev. long cross and pellets (N.1707/1682-83; S.2202), dark tone on a small flan, fine, very rare.
Reportedly found Sherborne, Dorset (prior to October 2006)
,
At the DNW sale of February 2013, it was noted that Henry VII/Richard III reverse die mules are known from nine examples with five further 'true' coins and the 2013 coin which which was not attributable with certainty to either reign.
Estimate: £150 - £200