Constantine, posthumous, AE4, Cyzicus, 341-346 AD.

Obv: DV CONSTANTINVS PT AVGG, veiled head right.
Rev: IVST VEN MEM - Aequitas standing left holding scales 
and scroll in her lowered left hand.

RIC VIII Cyzicus 35, rated rare.

Courtesy of Jim Phelps, www.lunalucifera.com, Oct. 2010.