Constantine I, AE3, 316, Trier, Officina 2
CONSTANTINVS P F AVGLaureate, cuirassed bust right
MARTI CON_SERVATORI Mars, helmeted, in military dress, standing facing, head left, reversed spear in right hand, left hand resting on shield T | F across fields BTR in exergue 19mm x 20mm, 3.10g