Severus Alexander, contemporary imitation ("limes falsum") imitating the Rome mint, 222 AD. and later,
Æ Denarius (17-18 mm / 2,49 g),
Obv.: [IMP C] M AVR SEV ALEXAND AV[G] , laureate, draped bust of Severus Alexander right, seen from behind.
Rev.: [IOVI CONSERVATORI] , Jupiter standing left holding cloak hanging over his right arm, thunderbolt in right hand and leaning on scepter with left.
for prototype, cf. RIC IV 141 ; BMC VI 56 ; RSC III 70 .
Curtis Clay: "G. Elmer invented the term "limesfalsa", which is now usually applied to ancient casts of denarii."