Watch List notes:

Constantine I. AD 307/310-337. Æ Follis (23mm, 4.18 g, 6h). CONCORD MILIT Type. Londinium (London) mint. Struck circa AD 311-312. Helmeted and cuirassed bust right / Concordia standing left, holding signum in each hand; –|*//PLN. RIC VI –; C&T 7.04.008 (this coin cited and illustrated). Brown patina, minor roughness. Good VF. Rare.

From the Paul DiMarzio Collection. Ex Andrew Wayne Collection (Classical Numismatic Group Electronic Auction 139, 10 May 2006), lot 377.