Hola.
A mi me parece que es Constancio Gallo
anverso D N FL CL CONSTANTIVS NOB CAES
reverso FEL TEMP REPARATIO
Parecida a estas
http://www.wildwinds.com/coins/bigpic.cgi?img=coins/./ric/constantius_gallus/_constantinople_RIC_124v.jpg&ruler=./ric/constantius_gallus/i.html
http://www.wildwinds.com/coins/bigpic.cgi?img=coins/./ric/constantius_gallus/_rome_RIC_265v.jpg&ruler=./ric/constantius_gallus/i.html
Un saludo.