A question of chronology. Claudius served as consul for the first time during Caligula's reign. After being proclaimed emperor, Jan 24, 41AD, he was designated consul for the 2nd time. On what date did this occur? I presume that the designation occurred after his accession. The reason for this question is in regard to chronology of the quadrantes of Claudius. Most are dated either COS II or COS DES but a rare type (RIC 86 and 87 differentiated by a minor legend variation) have no reference to the consulship. Might these be dated to a gap following accession but prior to being formally granted this honor? These are very rare (much rarer than I think generally recognized) and could reasonably correspond to a very short time period.
One would think the designation date would be easy to find but I haven't yet seen it. My understanding is that Tacitus' Annals for the first part of Claudius reign do not survive, however, this period seems to be well documented otherwise. I had also thought this would be addressed somewhere such as the RIC introduction to Claudius reign, but I haven't found it.http://numismatics.org/ocre/id/ric.1(2).cl.86?lang=enhttp://numismatics.org/ocre/id/ric.1(2).cl.87?lang=en