Watch List notes:

Constantine I. AD 307/310-337. Follis (19mm, 3.10 g, 6h). Londinium (London) mint. Struck AD 317-318. Laureate and cuirassed bust right / Prince, in military dress, standing left, cloak spread, holding shield in right hand set on ground and reversed spear in left; (crescent)|–//PLN. RIC VII –; C&T 8.11.015 var. (Prince standing right; this coin cited). Brown patina. Good VF. One of two known with Prince standing left. The other example in a private collection.

From the Paul DiMarzio Collection. Ex ArtCoins Roma 6 (10 December 2012), lot 1208.