Claudius Egypt, tetradrachm
Image rights: wildwinds.com

     Claudius & Messalina, billon tetradrachm, (10.45g) Alexandria,
     Egypt, Partial legend. Laureate head right, LA before. / Little
     legend. Messalina standing, head left, leaning on column, holding
     two small figures symbolizing their two children: Octavia &
     Britannicus (?)). BMC2648; Dattari 119; RPC 5113. 
The children were traditionally identified as the children 
of Claudius and Messalina, Britannicus and Octavia, but Dattari (RIN 1900, pp 383-4) rejected this view, since 
Britannicus was born a year after this coin was introduced 
in 41 AD; Vogt (pp. 24-25) returned to the traditional descriptions, arguing that the date of Britannicus's birth 
was not certain, and that these coins, in fact show that he was born before August 41.'