 The "inscribed cross" coinage is notable for the onset of major debasement, the centralisation of die-cutting for Canterbury and Rochester, and for a massive increase in the number of moneyers, so that almost 50 are known from the time of Æthelberht.These changes probably reflect the onset of a new and more intense royal management of the coinage, which was to be expanded under Æthelberht's successors.In the reign of Berhtwulf of Mercia (c. 840–52) minting at London, Mercia's only remaining mint, began again in earnest, around the time of Æthelwulf's second phase of coinage in the mid 840s.