Helena, AE follis, Nicomedia. 20mm, 3.9g.

FL HELENA-AVGVSTA, draped bust right with hair in Magnia
Urbica fashion.
SECVRITAS-REIPVBLICE, Securitas standing facing, head left, 
branch downward in right hand, raising robe with left. 

Mintmark SMN delta.

RIC VII Nicomedia 95, rated R4

With kind permission of Incitatus Coins on vcoins.com, April 2007.