Watch List notes:

Mercia, Offa (757-796), Penny, Light coinage, South Eastern, portrait type, Canterbury, Ealhræd, 1.11g, 8h, offa before cuirassed bust right, with ringlet hair, rex retrograde behind, rev. incurved quadrilateral at centre of celtic cross, +e|al|r|ed [retrograde] in angles, trefoil-sceptre terminals in tressures (Chick 98 ~ this coin not listed; cf. CEB 49; N.291; S.905), lightly pitted surfaces and a minor scuff to reverse, otherwise of imposing and competent style, the retrograde reverse unusual, a bolder very fine, rare with only seven other coins known to Chick.
provenance
SNC, December 2009, HS3949 - £3,250
Found Colne, Cambridgeshire, Summer 2009
Estimate: £1,500 - £2,000