Caligula, AE31 of Caesaraugusta, Spain. AD 37-41. 12.64 g. 
Scipio and Montanus, duovirs. 

C CAESAR AVG GERMANICVS IMP PATER PATRIAE (partially ligate), bare head left
C C A SCIPIONE ET MONTANO II VIR, veiled priest ploughing right 
with pair of oxen. 

RPC 375, Paris 576.

Courtesy of the Berlin Coin Cabinet.