Crispus, Caesar, 316-326. Follis (Bronze, 20 mm, 3.33 g, 12 h), Rome, 317. CRISPVS NOBIL CAES Laureate and cuirassed bust of Crispus to right. Rev. PRINCIPI-A IVVENTVTIS / A / R Q Mars standing front, head to right, holding inverted spear in his right hand and placing his left on shield set on ground. RIC 90. Rare. Very minor weakness and with light deposits on the reverse, otherwise, extremely fine.