CAESAR
AVGVSTVS TRIBVNIC POTEST (Translation: Caesar Augustus Tribunicia Potestate. Caesar Augustus, holder of tribunician power.)
Reverse description
Head of Numa Pompilius, bearded, diademed, right, large; dotted border.
Reverse script
Latin
Reverse lettering
CN PISO
CN F IIIVIR A A A F F (Translation: Cnaeus [Calpurnius] Piso, Cnaei Filius, Triumvir Auro, Argento, Aere, Flando, Feriundo. Gnaeus [Calpurnius] Piso, son of Gnaeus, moneyer (Triumvir Monetalis) for the casting and striking of gold, silver, and bronze coins.)