Constantine I. AD 307/310-337. Æ Follis (25mm, 6.97 g, 6h). Treveri (Trier) mint. Struck AD 307-308. Laureate and cuirassed bust right / Mars advancing right, holding transverse spear and shield; S-A//PTR. RIC VI 776. EF, traces of silvering are toned, dark gray patina.