Edit: I changed the title for this thread as I unintentionally used an incorrect one -- I apologize for that mistake. Composition -- Only Aes (bronze with a silver wash) folles were produced by the London mint during this period (same composition for folles produced at Lugdunum). Weight range -- Typically 11.0 to 8.5 gm. Mints -- RIC Volume VI: A quantity of Constantius "Invasion coinage" (folles) was produced at a temporary Continental Mint (exact location unknown, although some French researchers and collectors list it as Boulogne), manned by Lugdunese workers. All other issues were produced at the London mint formerly operated by the usurper Emperors Carausius/Allectus now re-opened (most likely consisting of just one officina) by Constantius. Weight range -- Typically 11.0 to 8.5 gm. Obverse depiction -- Almost always cuirassed (sometimes draped) right facing busts (but occasionally bare neck truncated) with a laureate head. Top: Cuirassed bust with laureate head Bottom: Bare neck truncated bust with laureate head Obverse inscription (legend) -- Around periphery -- names and titulature reading clockwise Following is a key for name and titulature abbreviations: IMP - Imperator, the Augustus as supreme Commander. C - Caius as a praenomen. P - Pius, dutiful. PF - Pius Felix, dutiful and blessed. AVG, AV - Augustus, unique title of a ruling Emperor. FL - Flavius as a praenomen. VAL - Valerius, familial name. NOB, NOBIL - Noble, associated with Caesar. CAES, C - Caesar, heir to, and protege of, an Augustus. Reverse depiction -- Almost always a representation of the Genius of the Roman People standing, facing left, head surmounted by a modius, naked except for a chlamys over the left shoulder, holding a patera in the right hand and cradling a cornucopia in the left arm. Depiction of Genius of the Roman people Reverse inscription (legend) -- around periphery, reading clockwise GENIO POPVLI ROMANI without a mint mark (often referred to as unmarked) except for the very early Group I coins (RIC numbers 1a through 5) that have LON in the exergue. Reverse axis -- 6 or 12 o'clock My primary reference: Roman Imperial Coinage (RIC), Spink & Son Ltd., London, Volume VI The end of Constantius Coinage On 1 May 305 Constantius succeeded Maximian Herculius as Augustus of the West and Galerius Maximian succeeded Diocletian as Augustus of the East, as planned. Flavius Valerius Severus (Severus) was appointed Caesar of the West and Galerius Valerius Maximinus Daia (Maximinus) was appointed Caesar of the East. Constantius died at Eboracum (York) in Britain during a campaign against the warlike tribes of the North on 25 July 306. Just before he died, Constantius conferred Imperium on his son, Flavius Valerius Constantinus (later Constantine the Great). Although his army wanted to proclaim Constantine Augustus, Galerius Maximian, the now de-facto senior Augustus, proclaimed him Caesar of the West and elevated Severus to Augustus of the West in accordance with the rules for succession. The London Mint continued to operate until AD 325, mostly under the auspicies of Constantine.
if you haven't got it yet, I recommend The London Mint of Constantius and Constantine by Hugh Cloke and Lee Toone.
Here's another reverse type of Constantius I: Bronze Nummus Siscia mint, A.D. 300-301 Obv: CONSTANTIUS NOB CAES Rev: SACRA MONETA AVGG ET CAESS NOSTR - Moneta, standing left, holding scales and cornucopiae SIS in exergue; [star] in left field, B in right RIC 135a 28mm, 9.5g.
The only Constantius I that I have: RI Constantius I Chlorus 293-306 CE DIVO AE Quinarius Thesalonika 317-318 Seated RIC VII 25 R5 RARE
I came at the "Invasion coinage" from the other direction i.e. Lugdunum. The early Lugdunum coinage is quite close in style to it.
Wonderful post @jamesicus . I only have one: Constantius I as Caesar, AD 293-305 Æ Follis, 29mm, 9.6g, 12h; Trier mint, AD 303 Obv.: CONSTANTIVS NOBIL C, laureate and cuirassed bust right / Rev.: GENIO POPV-LI ROMANI, Genius standing left, wearing modius on head, holding patera and cornucopiae; S-F In Ex.: ITR
Yes, that is why Sutherland transferred the series (class i) from Londinium to Lugdunum in RIC Volume VI (IAW Bastien).
Constantius I (Caesar) Coin: Bronze Follis CONSTANTIVS NOB CAES - Laureate head left GENIO POPVLI ROMANI - Genius standing left, modius on head, naked except for chlamys over left shoulder, holding patera & cornucopiae, B to left, Γ to right Exergue: Mint: Trier ( 296-297 AD) Wt./Size/Axis: 10.66g / 25mm / - References: RIC VI Trier 220a Constantius I (Caesar) Coin: Bronze Follis CONSTANTIVS NOB CAES - laureate bust right GENIO POPV-LI ROMANI - Genius standing left, modius on head, naked except for chlamys over left shoulder, holding patera and cornucopiae. Left field: A; right field: Gamma Exergue: Mint: Trier (292-305 AD) Wt./Size/Axis: 9.63g / 26mm / - References: RIC VI Trier 213a
Constantius I (Caesar) Coin: Bronze Follis CONSTANTIVS NOB CAES - Laureate head right FELIX ADVENT AVGG NN - Africa standing to left in elephant headdress, holding standard and tusk, lion with captured bull at feet. Exergue: Mint: Carthage (297 AD) Wt./Size/Axis: 9.76g / 27mm / - References: RIC VI Carthage 22a My favourite Constantius I (Caesar) Coin: Bronze Follis FL VAL CONSTANTIVS NOB C - Laureate and cuirassed bust right GENIO POPV-LI ROMANI - Genius standing left, holding patera and cornucopiae Mint: London (300-305 AD) Wt./Size/Axis: 9.72g / 27mm / - Rarity: Rare References: RIC VI 14a
No invasion coinage here, but I do have an early follis from Cyzicus with a reverse legend not seen here yet: GENIO AVGG ET–CAESARVM NN, RIC VI 9a p. 580. RIC distinguishes between emission (ii) in 295-6 and (iii) 297-9 on the basis of the portrait. The former is smaller and higher relief. (I think I've got that one; if I'm wrong, this is 11a.) (Apologies for the bad photo, it's on the list for a re-shoot.)
Constantius was made Caesar shortly before the coinage reform so there are antoniniani in his name. Below is one from Lugdunum with thunderbolt in exergue and Antioch with XXI.