Watch List notes:

ANGLO-SAXON, Kings of Mercia. Offa. 757-796. AR Penny (16mm, 0.97 g, 7h). Light coinage, portrait type. London mint; Dud, moneyer. Struck circa 785-792/3. Diademed bust right / + ∂ V D divided by four jewel-like lobes; the inner circle contains a cross botonnée with four petals in saltire. Naismith, Coinage 11 = EMC 2008.0375 (this coin); Chick 2; SCBI 9 (Ashmolean), 3; North 310; SCBC 905. Fine, porous, slightly ragged flan.

Found near Market Rasen, Lincolnshire, 2008.