Augustus (27 BC-AD 14) AR Denarius (Silver, 19mm, 3.63g) Lugdunum (Lyon), 2 BC-AD 12.
Obv: CAESAR AVGVSTV[S DIV]I F PATER PATRIAE, laureate head right
Rev: AVGVSTI F COS DESIG PRIN[C IVV]ENT, C L CAESARES in exergue, Gaius and Lucius Caesar, on left and right, standing facing, each togate and resting a hand on one of two shields set on ground between them; behind the shields, two crossed spears; above, on left, a lituus right, and on right, a simpulum left; X below them.
Ref: RIC I 212; Lyon 86; RSC 43d; BMCRE 538; BN 1665-6.