Watch List notes:

(x) Henry I (1100-35), Halfpenny, 0.46g, Winchester, Ailwine, uncrowned head facing, rev. ailpine on pi, cross potent with a cross of pellets in each angle (cf.N.872 this moneyer not listed ; S.1277), slightly pitted, otherwise a full round coin, fine, extremely rare.
Provenance:
Spink auction 183, 26-27 September 2006, lot 19
Estimate: £2000 - £2500