Watch List notes:

BRITISH COINS, Berhtwulf, King of Mercia (840-852), Silver Portrait Penny, London type, moneyer Osulf, bust to edge of coin facing right, linear circle around head, legend commences lower left, BERHT--- -EX, outer beaded border both sides, rev cross crosslet within beaded circle, +OSYLF MON---, 0.72g (CSE L41.2; N 406; S 935). Coin fragmented, main fragment therefore chipped and ragged, otherwise very fine, toned and very rare.
ex A H Baldwin & Son Ltd, c.1982
from The David Sellwood Collection

Estimate: £400-500