Rome, 37-41 AD. Æ as, 11.25 gr., 3.01 mm.
Obv: M AGRIPPA L F COS III; head of Agrippa to the left, wearing rostral crown.
Rev: Neptune standing to the left, nude, with drapery over arms, holding small dolphin and vertical trident; across fields: S C.
Ref: RIC (Gaius) 58; BMC (Tiberius) 161.