 The "Second Hand" type of Æthelred, for example, was not much different in appearance from its predecessor, raising the question of how easily people would have told it and the old coinage apart.More importantly, only minuscule numbers of the type survive from more northerly mints such as Lincoln and York which, in the rest of the period, were some of the most productive in the kingdom.It is possible that the Second Hand type represents a continuation of the First Hand type, which may have run on rather longer than six years as part of a mechanism that did envisage changes of type, but not necessarily on a strict sexennial basis.