Yes they were issued c. 293 by the following mints (RIC Volume V-2): Rome, Ticinum, Cyzious, Antioch, Lugdunum, Rome, Siscia and Treveri. BTW, that is a very nice Antoninianus you posted.
Very informative post and nice coins @jamesicus. Nothing from London or Boulogne I might contribute with, but a few Constantius from other mints, including an argenteus Constantius, Argenteus Antioch mint, 8th officina, c. AD 296-297 CONSTANTIVS CAESAR, Laureate head of Constantius right VIRTVS MILITVM, Campgate, *ANTH* at exergue 3.40 gr Ref : Cohen #318, RCV # 13966 (1100) Constantius, Follis Cyzicus mint, 2nd officina IMP C FL VAL CONSTANTIVS P F AVG, laureate head right GENIO POPVLI ROMANI, genius standing left, KB at exergue 9.65 gr Ref : Cohen # 102, Constantius, Follis Trier mint, 1st officina, AD 305-306 IMP CONSTANTIVS PF AVG, Laureate and cuirassed bust of Constantius right GENIO POPVLI ROMANI, Genius standing left, holding patera and cornucopia. S | F in field, PTR at exergue 11.09 gr Ref : RCV # 14176 (100), Cohen #116, RIC VI # 642a Divo Constantius, Follis Posthumous issue under the reign of his son Constantine the great Trier mint, 1st officina, c. AD 307-309 DIVO CONSTANTIO PIO, laureate, cuirassed and veiled bust of Constantius right MEMORIA FELIX, large altar between two eagles. PTR at exergue 5,62 gr, 26 mm Ref : RCV # 16420 (200), Cohen # 179, RIC VI # 789 Q
Thanks for the informative post, @jamesicus. I really need to get myself one of these London issues. This Constantius Argenteus was one of my big purchases last year. Also on my want list was an antoninianus, and I managed to score one last year as well.
Thank you for posting that very informative map Andres2 -- excellent contribution! Very nice coins too! Edit: Could I have your permission to reproduce and use your map please?
Also the interesting and rarely encountered antoniniani issued by the usurper Augustus Carausius who established his own mints at London (Londinium) and Colchester (Camulodunum/Clausentum) -- "C" Mint -- and across the Channel in Gaul. Carausius attempted to assert his equality with the legitimate Dyarchal Augusti, Diocletian and Maximian Herculius (not accepted by them), by issuing a series of Antoniniani (some in their names) which included their portraits and AVGGG (the three Augusti: Diocletian, Maximian Herculius and Carausius) as part of the reverse legend. RIC V (2), London, Carausius, Antoninianus, No. 335 IMP C CARAVSIVS P AVG PAX AVGGG | S .....P | C RIC V (2), London, Carausius, Antoninianus. No. 5 IMP C DIOCLETIANVS PF AVG PAX AVGGG | S .....P | MLXXI RIC V (2), London, Carausius, Antoninianus, No. 34 IMP C MAXIMIANVS PF AVG PAX AVGGG | S .....P | MLXXI
The most impressive of them being those bearing their three portraits. There's an ultimately beautiful one at Forvm (for some reason it's the most viewed and most commented coin ever in Forvm gallery ) : from postumus' gallery Q
Oh, thank you for posting that Cucumbor !! That is the holy grail of Carausian coins -- and incredibly rare and seldom encountered "in the flesh". I seldom go "bonkers" over a coin, but this is one of my exceptions. Twenty years or so ago I had an outside chance of owning one of these -- an ancient coin collecting professor at the U of A had a somewhat worn (who cares?!) specimen that he was interested in trading with me for some of my London mint folles plus (lots of cash). Anyway, we talked about the possibilities at two or three local coin shows, but I never could negotiate a mutually satisfactory deal. I got over it (the fever subsided) and have lost touch with my collector friend who I have not seen for many years!
Here is my Constanius, unfortunately there is no reference to the mint.Perhaps some of our members may advise.
Although it looks like HB in the reverse center, which would mean Heraclea... I think it's KB, pointing to: Constantius I FL VAL CONSTANTIVS NOB CAES RDC CONCORDIA MI-LITVM KB Cyzicus RIC VI Cyzicus 19A Scarce light fraction ca. 3 gr. 295-299 The reason I think KB over HB is the draped bust and reverse legend break match Cyzicus rather than Heraclea according to Helveticas spreadsheets. http://www.forumancientcoins.com/dane/