Watch List notes:

CONSTANTIUS I, (A.D. 305-306), AE follis, London mint, issued A.D. 297, (10.35 g), obv. laureate cuirassed bust of Constantius to right, around FL VAL CONSTANTIVS NOB C, rev. around GENIO POPV LI ROMANI, Genius standing to left, holding patera and cornucopiae, plain in exergue, (S.3672, RIC 14a). Good extremely fine on a broad flan.

Ex Brian Bolton Collection, from Noble Numismatics Sale 91 (lot 3749), with ticket.
An interesting and unusual bust style for the sought after London mint.