Agrippa, Issue by Caligula, 37 - 41 ADrnAE As, Rome Mint, 27mm, 9.72 gramsrnObverse: M AGRIPPA L F COS III, Head of Agrippa left wearing rostral crown.rnReverse: S C, Neptune standing left holding dolphin and trident.rnRIC58rnrnex Imperial Coins & Antiquities