Hanniballianus AE4 of Constantinople. AD 336-337. 15mm, 1.44 g.

FL HANNIBALLIANVS REGI, bare-headed, draped and cuirassed bust right.
SEC-VRITAS PVBLICA, river god Euphrates sitting right, leaning with right arm on sceptre, left hand pouring water from a vase, reed in background. 

Mintmark CONSS. 

RIC VII 148; Cohen 2.

The difference between RIC 147 and 148 is the reverse legend break, 147: SE- and 148 (rarer): SEC-.

With permission of cngcoins.com, auction Auction 145, Lot 362, Aug 2006.