Constantius Invasion Coinage

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In late 286 or early 287AD Carausius (A respected Roman military commander) declared himself Emperor of Britain and Northern France thus creating the Britannic Empire. He was forced into doing this as Rome had sentenced him to death as he was suspected of keeping captured treasure for himself and of allowing the pirates of Western France, the English Channel and the North Sea to carry out raids and enrich themselves before he took action against them.

Rome was, as you might expect not very happy about this and in 288 or 289AD Maximian attempted to invade and recapture Britain, he failed, miserably. Almost a decade later Constantius (Constantine the Great's Father) again attempted to recapture Britannica. He succeeded in September 296 killing Carausius' successor Allectus.

Before the invasion it is thought that a number of coins were produced at an unknown location (probably a field camp where the invading troops were massed) by Lyons mint workers. These coins would be carried across the channel by the invading army to pay the troops and other associated costs. These coins were also to be used to 'fill' the Britannic economy and speed the removal of pre reform Carausius and Allectus minted coins.

It is these coins that are now sometimes referred to as 'Invasion coins'.  The coins, 4 in total, one each for Diocletian, Maximian, Constantius and Galerius were struck from dies cut by Lugdunum (Lyons) celators.  It is believed the striking took place at the pre-invasion field camp in Bononia (Boulogne), the coins all exhibit an un-mintmarked reverse bearing the legend GENIO POPVLI ROMANI.  Three reverse legend breaks exist for each coin, due to them being un-marked they are often mistook for coins minted in Londinium (London).
Diocletian 284-305AD

IMP C DIOCLETIANVS PF AVG - Bust right, Laureate.

GENIO POPV-LI ROMANI - Genius, naked standing left, modus on head holding patera and cornucopiae.

295-296AD - RIC VI Lugdunum 14a (p243)

Maximian 286-305AD

IMP C MAXIMIANVS PF AVG - Bust right, Laureate.

GENIO POP-VLI ROMANI - Genius, naked standing left, modus on head holding patera and cornucopiae.


295-296AD - RIC VI Lugdunum 14b (p243)

Constantius 305-306AD

FL VAL CONSTANTIVS NOB C - Bust right, Laureate.

GENIO POPV-LI ROMANI - Genius, naked standing left, modus on head holding patera and cornucopiae.

296AD - RIC VI Lugdunum 17a (p243)

Galerius 305-311AD

C VAL MAXIMIANVS NOB C - Bust right, Laureate.

GENIO POPV-LI ROMANI - Genius, naked standing left, modus on head holding patera and cornucopiae.


296AD - RIC VI Lugdunum 17b (p243)

The above coins are not for sale but I'm always on the lookout for more so if you're selling one let me know.
 
The Invasion of Constantius was successful and Britannia again fell under the control of Rome after a decade of being independent.  The Invasion coins filled the economy and were used until local mints began producing coins of their new four Emperors and Caesars.

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