Watch List notes:

Robert III, billon halfpenny, first issue, rough facing bust with tall neck, BERTVS EI G R, rev. long cross, pellets in angles, VILA EDINBVR, crescent and fleurs-de-lis stops to both obverse and reverse, no 'mm,' wt. 0.39gms (S.5186), extremely rare, irregular flan, chipped below bust, fair
*ex DNW, 18/03/2015, lot 514, purchased for £124
Believed to be the first recorded example
See Richardson item 249 for similar type, none in SCBI 35

Estimate: 200 - 300 GBP