Watch List notes:

Constantine I. AD 307/310-337. Æ Follis (23.5mm, 5.57 g, 6h). Londiumium (London) mint. Struck late AD 309-311. Laureate and cuirassed bust right / Mars standing right, holding reversed spear and shield set on ground to right; T|F//PLN. RIC VI 118; C&T 6.02.005. Brown patina, some green, traces of porosity, area of flat strike on reverse. Good VF. Rare.

Reportedly ex circa 1970 Bourton-on-the-Water Hoard.