Istros, Thrace, pseudo-autonomous issue, 3rd. century AD. 3.45 g. 

Helmeted bust of Athena right with aegis.
ICTRIHNWN, Dionysos standing facing, head left, holding kantharos 
and thyrsos. 

AMNG 483. 

With permission of Helios GmbH, Auction 5, June 2010, lot 30.