Mint and Date: Rome, 251 CE.
Size and Weight: 20mm x 21mm, 4.38g
Obverse: Radiate, draped bust right.
Q HER ETR MES DECIVS NOB C
Reverse: Mercury standing left, holding purse in right hand and short cornucopia in left arm.
PIETAS AVGG
Ref: RCV (2005) 9520, RIC IV 142b.
BW Ref: 002 035 116
Note: According to the Dictionary of Roman Coins, "Diodorus Siculus says of Mercury that he was the first amongst the deities who instituted religious worship and sacrifices; hence we see him on coins imaged with caduceus and purse, and the inscription around his effigy of PIETAS AVG., or AVGG".