Caligula, AE of Aizanis, Phrygia. 37-41 AD. 5.23 g. 

GAIOS KAISAR, laureate head right.
AIZANITWN EPI MHDHOU, Zeus standing left, holding eagle and sceptre. 

BMC 58; RPC 3075.

With permission of Helios GmbH, Auction 5, June 2010, lot 885.