Drusus, son of Tiberius (died 23 AD).     AE As, Rome mint, 22-23.   Obv.    DRVSVS CAESAR TI AVG F DIVI AVG N. Bare head left.        Rev.   PONTIF TRIBVN POTEST ITER. Legend surrounding large S C.     RIC I (2nd ed.) (Tib.) 45.     11.07 g.   27.5 mm.      R.  Rare issue. Brown patina with minor earthy deposits.    Good VF.