Constantine II, as Caesar, 316-337. Follis (Silvered bronze, 19 mm, 3.03 g, 12 h), Rome, circa 320. CONSTANTINVS IVN NOB C Laureate, draped and cuirassed bust of Constantine II to right. Rev. VIRTV-S AVGG / P - R / R P Campgate with closed doors and three turrets. RIC 183 var. (unlisted officina). Very rare, one of four examples from officina P in private hands, and with a detailed gate. About extremely fine.