Helena, AE follis, Heraclea. 326-327 AD.

FL HELENA-AVGVSTA, diademed bust right, wearing mantle and necklace.
SECVRITAS-REIPVBLICE, Securitas standing left, lowering 
branch with left hand, raising robe with right hand.

Mintmark: dot SMH Epsilon dot

RIC VII Heraclea 89; cf Sear 3908; cf Van Meter 3.
Rated R4.

Courtesy of "educationalcoins" on ebay, unsold at $45, Feb 2011.