Caracalla – Denarius – Mars Spear

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Obverse Description:

ANTONINVS PIVS AVG BRIT – Caracalla laureate head to right

Obverse Translation:

Antoninus Pius, Augustus, Britannicus – Antoninus Pius emperor (Augustus), conqueror of the Britons.

Reverse Description:

MARTI PROPVGNATORI – Mars, helmeted, in military attire, hurrying left, holding spear in right hand and trophy over left shoulder

Reverse Translation:

Marti Propugnatori – Mars, the defender.

Ruler:

Coinage:

,

Minted:

Year 210 - 213 AD

Rome

Denomination / Metal:

Denarius

Silver

Diameter / Weight:

19.6 mm

2.6 gr

Catalogue:

Catalogue: RIC IV 223

Observations:

The Caracalla “Mars the Defender” Denarius (RIC IV 223) is a striking piece of silver propaganda from the height of the Severan military autocracy. Struck between AD 210–213, this coin captures the transition of a young, co-ruling Caesar into a ruthless, battle-hardened Augustus. It is a physical manifestation of Caracalla’s obsession with the military and his desire to be seen as the living embodiment of Roman martial might.

At Numiscurio, we often say that a denarius is a “victory bulletin” you can carry in your pocket; this specific issue was struck to celebrate the conclusion of the brutal campaigns in Northern Britain.

1. The Historical Context: The British Triumph

By AD 210, Caracalla was campaigning in the wild, fog-shrouded highlands of Caledonia (modern-day Scotland) alongside his father, Septimius Severus. The war was a grim, scorched-earth struggle against the Caledonian tribes. When his father died at Eboracum (York) in early AD 211, Caracalla’s first move was to secure the loyalty of the legions.

The legend ANTONINVS PIVS AVG BRIT on the obverse is a proud declaration of his victory. The BRIT (Britannicus) title was hard-won in the mud of the North. This coin was minted to pay the very soldiers who had just finished subjugating the British tribes, ensuring their swords remained loyal to the new, young Emperor.

2. The Reverse: Mars the Propugnator

The reverse features Mars, the god of war, hurrying left in a dynamic, aggressive stance. He is in full military attire, brandishing a spear in his right hand and carrying a trophy over his left shoulder.

  • The Propugnator: The title MARTI PROPVGNATORI translates to “Mars the Defender” or “Mars who fights in the front ranks.” Unlike a stationary god, this Mars is advancing. He is a god of action, mirroring Caracalla’s own restless energy and his constant presence at the head of his troops.
  • The Trophy of Victory: The trophy (a wooden stake draped with the captured armor and weapons of the enemy) is a direct reference to the spoils taken from the British tribes. It served as a visual reminder to the Roman public that the “barbarian threat” had been neutralized.
  • The Military Attire: Notice the detailed rendering of the tunic and breastplate—this was a god for the common soldier to relate to.

3. The Obverse: The Mature Soldier-Emperor

The obverse features the laureate head of Caracalla, facing right.

  • The Severan Curls: His hair is still rendered in the tight, “Serapis-style” curls inherited from his father, but the portraiture is beginning to shift. We are moving away from the soft-featured youth and toward the scowling, military-cropped look that would define his later, more tyrannical years.
  • The “Pius” Claim: Despite his later reputation for cruelty (including the murder of his brother Geta), the title PIVS was vital. it signaled his “duty” to his father’s memory and the continuity of the Severan dynasty.
  • The Legend: ANTONINVS PIVS AVG BRIT.

4. Technical Details: The Silver of the Legions

  • RIC IV 223: Cataloged in the fourth volume of Roman Imperial Coinage, the primary reference for the Severan age.
  • The Mint: Struck in Rome. Despite the Emperor’s travels, the central mint maintained a high standard of engraving for these British victory issues.
  • The Metal: While the silver purity of the denarius was beginning to fluctuate, the AD 210–213 issues still possess a solid weight and a bright, “honest” luster.
  • The Collector’s “Tell”: Look for the detail in the crested helmet of Mars and the individual spearhead. On sharp, early die-strikes, you can even see the individual folds of the god’s military cloak (paludamentum) as it flutters behind him.