Watch List notes:

BRITISH COINS, Kings of Mercia, Offa (757-96), Penny, Light coinage, London, Winod, offa rex, diademed bust right, rev. g in od n (retrograde) in angles of floriate lozenge-cross, 1.08g/6h (cf. Chick 71; Blunt –; N 275; S 905). Small striking crack, otherwise fine, reverse better, the surfaces porous, very rare £1,000-1,200