Offa, King of Mercia, AR penny, London mint. Moneyer Ealmund. AD 757-796. 1.0 g. 16 mm. 

OFFA REX, diademed, draped bust right, X at lower left 
and right.
+EALMVND around long cross with globes surrounded by
dots at the ends, petals in the angles.

Seaby 905; Chick 50r.

Courtesy of Baldwins Co. Lts, item FM44456, Dec. 2015.