Urbs Roma AE3 330-333 AD "A commemoration of the city of Rome." 

Obv: VRBS ROMA - Helmeted bust of Roma left, wearing mantle. 
Rev: no legend - Wolf and twins Romulus and Remus, two stars above. 

Mintmark dot SMH epsilon

RIC VII, Heraclea 119 rated R1

Courtesy of TimeLine Originals (www.time-lines.co.uk), Dec. 2010