Watch List notes:

(x) William I (1066-87), Penny, 1.37g, Profile Right / paxs mule, Winchester, Leofwold, + pillelm rex, crowned and draped bust right, sceptre in front, rev. lefpold on pinc, cross pattée, paxs in angles (same dies as BMC 497, SCBI 20 (Mack) 1402 and SCBI 30 (American) 704; N.847/848; S.1256/1257), a superb example, extremely fine with an excellent portrait, very rare.
Provenance:
Spink Australia, auction 24, 16-17 March 1988, lot 1649
Spink Numismatic Circular, May 1978, no. 6367
Bird, Glendining/Spink, 20 November 1974, lot 242
Lawson, Glendining, 19 July 1954, lot 141
Ryan, part II, Glendining, 22-24 January 1952, lot 884
Talbot-Ready, Sotheby, 15-19 November 1920, lot 212

Estimate: £4000 - £5000