Antoninianus - Diocletianus (IOVI CONSERVAT; eagle; Ticinum) (285) front Antoninianus - Diocletianus (IOVI CONSERVAT; eagle; Ticinum) (285) back
Antoninianus - Diocletianus (IOVI CONSERVAT; eagle; Ticinum) (285) photo
© Quiquengrogne

Antoninianus - Diocletianus IOVI CONSERVAT; eagle; Ticinum

285 year
Billon (.0476 silver) 3.36 g 22 mm
Description
Issuer
Rome › Roman Empire (27 BC - 395 AD)
Emperor
Diocletian (Gaius Aurelius Valerius Diocletianus) (284-305) Maximian Herculius (Marcus Aurelius Valerius Maximianus) (286-305)
Type
Standard circulation coin
Year
285
Value
Antoninianus (1)
Currency
Antoninianus, Reform of Caracalla (AD 215 – 301)
Composition
Billon (.0476 silver)
Weight
3.36 g
Diameter
22 mm
Thickness
1 mm
Shape
Round (irregular)
Technique
Hammered
Orientation
Medal alignment ↑↑
Demonetized
Yes
Updated
2024-10-05
References
Numista
N#119505
Rarity index
92%

Reverse

Jupiter, standing left, holding thunderbolt in right hand and sceptre in left hand; at foot, eagle; mark of value in exergue flanked by mintmark.

Script: Latin

Lettering:
IOVI CONSERVAT
XXI

Translation:
Iovi Conservatori.
To Jupiter the Protector.

Edge

Rough

Comment

This antoninianus matches with the standards of the reform of Aurelianus (274), that is to say that its theoric weight is 1/84 of the libra (= 3,9 g) and that it was struck from billon made of twenty parts of copper per part of silver ; moreover, there is a specific officina letter which is engraved on the reverse to authentify the origin fo its struck. That is the reason why this antoninianus may be called an aurelianus.

Interesting fact

One interesting fact about this coin is that it was issued during the reign of Diocletian, who was one of the most influential Roman emperors and known for his economic and military reforms. The coin's design, featuring an eagle and the phrase "IOVI CONSERVAT," suggests that it was minted to honor the god Jupiter, who was considered the protector of the Roman state. Additionally, the use of billon, a silver-copper alloy, was a common practice during this time period, as it was more durable than pure silver and helped to stretch the empire's resources.