Ob: AVGVSTVS TRIBVNIC(i) POTEST(ate) [Augustus with the power of a tribune | Re: [C CAS]SIVS [CELER IIIVIR] A(era) A(rgento) A(uro) F(laundo)]F(eiundo) S(enatus) C(onsulto) [Caius Cassius Celer, triumvir over the striking of gold, silver, and bronze, by decree of the senate]