 Viking settlers in England found themselves in a more sophisticated coin-using economy than they were accustomed to at home; consequently it is unsurprising that the first coins that can be associated with the Vikings in England are imitations of Alfred's coinage, particularly the 'London monogram' and 'two-line' types.These are very numerous today, and for a long time caused great difficulty for numismatists working on Alfred's coinage, who could not always tell them from the genuine issues.However, before the end of the 9th century new silver coinages had begun in East Anglia and at York.