Watch List notes:

Aethelred II (978-1016), Penny, Crux type, Cambridge, Sidewine, 1.55g, 9h, + æðelræd rex anglorx, diademed and draped bust left, sceptre before, rev. + sidþine m-o grant, voided short cross, c r v x in angles, additional pellet in each quarter (Jacobs, pl. I, no. 12 (Royal Cabinet, Stockholm) same dies; SCBI 1 (Fitzwilliam) 648 variety; SCBI 51 (Estonia) 19, same dies; BNJ (1909), pp. 26; Hildebrand type C/a; BMC IIIa; N.770; S.1148), a broader, toned, but crimped flan with scattered pecking, fine or better, only five examples known to Jacobs, very rare.
Provenance
Baldwin 62, 29 September 2009, lot 167
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For further reading, see: K A Jacobs, 'The Mint of Cambridge: Part I', Seaby Bulletin, February 1984, pp. 34-43

Estimate: £150 - £200