250-251 AD., Herennius Etruscus, Rome mint, Antoninianus, RIC 138.

Herennius Etruscus, as Caesar, Rome mint, 250-251 AD.,
Antoninianus (20-22 mm / 3,07 g),
Obv.: Q HER ETR MES DECIVS NOB C , radiate and draped bust of Herennius Etruscus right, seen from behind.
Rev.: CONCORDIA AVGG , clasped hands (dextrarum iunctio).
RIC IV 138 (Tr. Decius) ; RSC 4 ; Coh. 4 .