Watch List notes:

Agrippa. Died 12 BC. Æ As (28mm, 10.83 g, 6h). 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, brown surfaces, minor roughness.

From the Matthew Rich Collection. Ex Spink Numismatic Circular XCV.4 (May 1987), no. 2879.