Helena AE3 Heraclea. 
 
Obv: FL HELENA AVGVSTA, Diademed, mantled bust right, 
wearing necklace. 
Rev: SECVRITAS REIPVBLICE, Securitas standing left, lowering branch and raising hem of robe. 

Mintmark Exe: SMH epsilon dot.

RIC VII, 85 
Rare
With permission of www.slaveycoins.com, March 2012.