Roman Empire. Augustus, Caius & Lucius. Denarius AR circa 2 BC - 12 AD, Lugdunum (Lyon).
Obv. CAESAR AVGVSTVS - [DIVI F PATER] PATRIAE (Cæsar Augustus Divi Filius Pater Patriæ) - Laureate head right.
Rev. C. L. CAESARES / AVGVSTI F COS DESIG PRINC IVVENT (Caius and Lucius Cæsares/ Augusti filii consules designati Principes Iuventutis) - Caius and Lucius Caesars standing facing, two shields and two spears between them; above, on left, simpulum right, and on right, lituus left.
Catalogue references: C.43 (6f.) - RIC.208 - BN/R.1660 - Giard/L1.85 /3a - RCV.1597 - MAR.133 p. 75 - CMDRR.23 - MRK.2 /50
3,34 g - 18 mm - Very Fine / TTB

Great details on the reverse.