Tiberius Julius Caesar Nero Gemellus and Germanicus Julius Gemellus, sons of Drusus Caesar and Livia Drusilla (Livilla) (c. 19-38 and 19-24 AD). AE Sestertius. Rome mint. Struck under Tiberius, 22-23 AD. Obv. Crossed cornucopiae, each surmounted by the bust of a boy, vis-à-vis; winged caduceus between. Rev. DRVSVS CAESAR TI AVG F DIVI AVG N PONT TR POT II around large S C. RIC I (2nd ed.) (Tib.) 42. AE. 26.90 g. 36.50 mm. R. Dark brown green patina. Gently smoothed. VF/Good VF. This issue commemorates the birth of twin sons to Drusus Caesar and his wife Livia Drusilla (Livilla). This event became part of the series issued in 22 AD to promote the imperial virtue and dynastic solidity of the second emperor's family. Tiberius Gemellus was made principal heir with his cousin Caligula upon the death of Tiberius. Within the year, however, Caligula had his cousin murdered.