Watch List notes:

Nero and Drusus Caesares, Dupondius struck under Caligula, Rome, AD 37-38; AE (g 16,17; mm 28; h 6); NERO ET DRVSVS CAESARES, Nero and Drusus Caesares riding r., Rv. C CAESAR AVG GERMANICVS PON M TR POT, around S C. RIC 34; C 1.
Brownish tone, extremely fine.