Watch List notes:

Nero & Drusus Caesar. Died AD 31 and 33, respectively. Æ Dupondius (28mm, 15.83 g, 6h). Rome mint. Struck under Gaius (Caligula), AD 37-38. Nero and Drusus Caesar on horseback riding right, cloaks flying behind them / Legend around large S • C. RIC I 34 (Gaius). Fine, red-brown and green surfaces, traces of deposits.