193 AD. and later, Didius Julianus, Sestertius, contemporary imitation ("limes falsum"), cf. RIC 14.

Didius Julianus, contemporary imitation ("limes falsum"), 193 AD. and later,
Æ Sestertius (25-28 mm / 11.37 g),
Obv.: [IMP] CAES M DID SE - VER IVLIAN AVG, laureate head of Didius Julianus right.
Rev.: [CONCORD MILIT] / S - C , Concordia standing facing, head left, holding standards.
cf. RIC IV 14 ; BMC 20 ; Coh. 3 .

Curtis Clay about a similar coin of Julia Mamaea: "The soft contours of the devices and the low weight suggest that this is an ancient cast. Such casts of sestertii, commonly found in Austria and Hungary, were the coins for which G. Elmer invented the term "limesfalsa", which is now usually applied to ancient casts of denarii."