Watch List notes:

BRITISH COINS, William I (1066-1087), Silver Penny, PAXS type (1083?-1086?), Southwark mint, moneyer Lifword, crowned facing bust with sceptre, crown type 1, breaking linear circle at bottom, legend commences lower left, +PILLELM REX, outer beaded circle surrounding both sides, rev cross pattée, letters P A X S each within annulet in each angle, linear circle surrounding, +LIFPORD ON SVĐI, 1.37g (N 848; S 1257). Weak in parts with die flaw raised on reverse, almost very fine, toned.
from the late David Sellwood collection

Estimate: £300-400