Watch List notes:

Agrippa. Died 12 BC. AE As (27mm, 12.57 g, 5h). Rome mint. Struck under Gaius (Caligula), AD 37-41. Head left with rostral crown / Neptune standing left, holding small dolphin and trident. RIC I 58 (Gaius). Glossy dark green patina with brown highlights. Good VF.

From the Jack A. Frazer Collection. Ex Classical Numismatic Group XXX (11 June 1994), lot 288.