Agrippa General of the Roman Empire from 45 BC to 12 BC.
Marcus Vipsanius Agrippa was a Roman consul, statesman, general and architect. He was a close friend, son-in-law, and lieutenant to Augustus.

He was responsible for the construction of some of the most notable buildings in the history of Rome and for important military victories, most notably at the Battle of Actium in 31 BC against the forces of Marcus Antonius and Cleopatra VII Philopator.

He died at Campania in 12 BC at the age of 51.

The most common coins featuring Agrippa were struck posthumously under Caligula. Several provincial issues also featured Agrippa, as well as a number of Republican issues.
Agrippa
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An AE As struck 37-41 A.D. in Rome
Obverse: M AGRIPPA LF COS III, head left wearing rostral crown

Reverse: S-C, Neptune standing facing, head left, naked except for cloak draped behind him & over both arms, holding small dolphin in right hand & vertical trident in left.

Diameter: 26 mm
Die Orientation: -
Weight: 9 g
Struck under Caligula 35
No references provided for this coin
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An AE As struck 38 AD in Rome
Obverse: head wearing rostrate crown left; M•AGRIPPA•L_•F • COS III

Reverse: Neptune standing left, holding dolphin and trident; S__C

Diameter: 25 mm
Die Orientation: -
Weight: 10.51 g
No notes for this coin
RIC I Gaius 58; BMCRE II Tiberius 161 - 168; Cohen I 3, BnF II Caligula 77 - 97, SRCV I 1812
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An AE As struck 37-41 AD in Rome
Obverse: M AGRIPPA L F COS III, Bare head of Agrippa facing left

Reverse: Neptune standing facing left, nude except for draped cloak, holding small dolphin in right hand and trident in left; SC in fields

Diameter: 29 mm
Die Orientation: 6 H
Weight: 9.97 g
Minted under Caligula
RIC 58
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An AE As struck AD 37-41 in Rome
Obverse: M AGRIPPA L F COS III, head left, wearing rostral crown

Reverse: Neptune standing left, holding small dolphin and trident; S-C across fields

Diameter: 27 mm
Die Orientation: 6 H
Weight: 9.57 g
No notes for this coin
RIC 58 (Gaius)
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An AE Dupondius struck 9-3 BC in Nemausus
Obverse: Head of Agrippa left, wearing rostral crown, and head of Augustus right, wearing oak wreath IMP / DIVI F

Reverse: Chained crocodile standing right; palm and filleted wreath behind COL_NEM

Diameter: 26 mm
Die Orientation: -
Weight: 13.1 g
No notes for this coin
RIC I 158, RPC I 524, SNG Cop 699, SNG Tübingen 152, SRCV I 1730
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An AE As struck 20-10 BC in Nemausus
Obverse: IMP DIVI F, Head of Agrippa facing left, wearing combined rostral crown and laurel wreath, bare head of Augustus facing right

Reverse: COL NEM, Crocodile chained to palm-shoot with tip right; above palm-tip left a wreath with long ties

Diameter: 25 mm
Die Orientation: 12 H
Weight: 12.65 g
Gaul, Nemausus (modern Nîmes in France) mint

The reverse symbolizes the capture of Egypt after the Battle of Actium, and the soldiers that won that battle were granted land in Colonia Nemausus.
RIC I (2nd Ed.) Augustus 155