317-318 AD., Claudius II, posthumous issue, Siscia mint, Half Follis, RIC 43.

Claudius II (Gothicus), posthumous issue struck under Constantine I. (the Great), Siscia mint, 317-318 AD.,
Æ3 / Half Follis (16-17 mm / 1,80 g),
Obv.: DIVO CLAVDIO OPTIMO IMP , laureate veiled bust of Claudius Gothicus right.
Rev.: REQVIES OPTIM - ORVM MERITORVM / SIS , emperor seated left on curule chair, raising hand and holding scepter.
RIC VII, 429, 43 (R3) ; 28 pieces on www.nummus-bible-database.com .

Constantine the Great struck commemorative issues for three persons: his claimed forefather Claudius II Gothicus (titled Optimus imperator), his adoptive grandfather Maximianus (Fortissimus imperator) and his real father Constantius (Pius princeps).