Viking Coinages, Viking Invaders, Ælfred imitative coinage (c.900), Halfpenny, diademed bust right, +ELF[––––]R around, reverse Londonia monogram, 0.50gm (N. 466 variety; S. 972 variety). Flan bowed and with minor edge chip, obverse fair and of crude style, reverse fine, extremely rare (£300-500)