Watch List notes:

Constantius II as Caesar (AD 324-337), AE Nummus (19.3 x 19.3 mm 2.78 g 6h), London mint, FL IVL CONSTANTIVS NOB C, laureate, draped and cuirassed bust of Constantius left, rev. PROVIDENTIAE CAESS, camp gate with pellet in doorway, PLON in exergue (RIC 298; CT 10.02.008 (this coin)), extremely fine.
Ex Toone collection.

The coins of Constantius II were only struck for a short time at London because the mint was closed soon after Constantius was elevated to the rank of Caesar. This coin is illustrated on the CT plate

(£100 - £120)