Constantine I. AD 307/310-337. Æ Follis (25.5mm, 5.42 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. Dark green to black patina. In NGC encapsulation, 4094368-011, graded AU. Strike: 4/5, Surface: 4/5.