Antoninus Pius, AE21 of Dium, Macedonia. 

IMP CAES ANTONINO P P, Laureate head right. 
COL IVL AVG DIENSIS, D-D across fields, Athena standing left,
 holding patera and spear, owl at foot.

Kremydi-Sicilianou 3-5; Lindgren II 1057; Varbanov 3410 var (obv. 
legend). 

With permission of London Ancient Coins, April 2012.