Constantine I. AD 307/310-337. Æ Follis (22mm, 3.88 g, 6h). MARTI CONSERVATORI Type. Londinium (London) mint. Struck circa AD 312-313. Helmeted and cuirassed bust right / Mars standing right, holding reversed spear in right hand and resting left on shield; *|–//PLN. RIC VI –; C&T 7.10.005 (this coin cited and illustrated). Brown patina, light scratches. Near VF. Extremely rare. The obverse die of this coin is the same die that struck the plate coin for C&T 7.07.11 thus providing another link between the left star and right star issues.
From the Paul DiMarzio Collection, purchased from Lee Toone (Hookmoor Ancient Coins), 12 February 2016. Ex CT Collections, purchased from Gert Boersma, November 2010.
From the 3rd reduction at London struck at 72 pieces to the Roman pound for a theoretical weight of 4.48 g. using dies with a beaded circle 21-22 mm in diameter.