Watch List notes:

Agrippa. Died 12 BC. Æ As (29mm, 10.51 g, 7h). Rome mint. Struck under Gaius (Caligula), AD 37-41. Head left, wearing rostral crown / Neptune standing left, holding small dolphin and trident. RIC I 58 (Gaius). VF, dark green patina, earthen deposits, smoothed.