Watch List notes:

William the Conqueror (1066-87), Penny, 'Two Stars' type, London, Eadwine, 1.27g, 10h, rev. + EDPI ON LVNI (Allen, BNJ 2012, pp. 77; N.845; BMC V; S.1254), toned, very fine.
Provenance
The John S W Coombs Collection (acquired Spink, October 1978 - £150)
Sir Charles Oman KBE, DCL, FBA collection (Christie's auction, 31 October 1972)
Estimate: £400 - £600