Watch List notes:

Agrippa. Died 12 BC. Æ As (29mm, 10.76 g, 6h). Rome mint. Struck under Gaius (Caligula), AD 37-41. Head left, wearing rostral crown / Neptune standing left, holding dolphin and trident. RIC I 58 (Gaius). EF, dark green patina, minor roughness, and a few cleaning marks.