Herennius Etruscus, as Caesar, 249 - 251 AD
Silver Antoninianus, Rome Mint, 23mm, 3.54 grams
Obverse: Q HER ETR MES DECIVS NOB C, Radiate and draped bust of Herennius right.
Reverse: PIETAS AVGVSTORVM, Sprinkler, simpulum, jug, patera and lituus.
RIC 143