Watch List notes:

BRITISH COINS, Alfred the Great (871-899), Silver Portrait Halfpenny, diademed bust right (not visible), +ÆLFRE D RE, rev Londinia monogram, pellets in central bisected O, pellet to left and triangle of six pellets below monogram, cross pattée above, 0.62g (N 645; S 1063). Toned, die flawed and weak on obverse, consequently with a much better reverse, fine / very fine for issue and extremely rare.
ex Baldwin's Auction 77, 27 September 2012, lot 2531

Estimate: £1200-1500