Constantius I Emperor of the Roman Empire from 305 to 306.
Marcus Flavius Valerius Constantius Herculius Augustus, commonly known as Constantius Chlorus, was Caesar from 293 to 305, and Augustus in the west from 305 to 306.

He was the father of Constantine the Great and founder of the Constantinian dynasty.

As Caesar, he defeated the usurper Allectus in Britain and campaigned extensively along the Rhine frontier, defeating the Alamanni and Franks. Upon becoming Augustus in 305, he launched a successful campaign against the Picts beyond the Antonine Wall. However, Constantius died suddenly in Eboracum (York) the following year.

His death sparked the collapse of the tetrarchic system of government inaugurated by the Emperor Diocletian.
Constantius I
Epithet: Chlorus ("the Pale")
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An BL Tetradrachm struck 293 AD in Alexandria
Obverse: laureate, draped and cuirassed bust right; ΦΛA KWCTANTIOC K

Reverse: Elpis standing left, holding flower and raising skirt; L_A / A

Diameter: 0 mm
Die Orientation: 0 H
Weight: 7.8 g

1 Mar 293 - 28 Aug 293 AD

Geissen 3347; Milne 5089; Dattari 6049; Emmett 4185 (R3); Kampmann-Ganschow 121.6
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An AE Follis struck AD 307-309 in Londinium
Obverse: DIVO CONSTANTIO PIO, laureate, veiled and draped bust right

Reverse: MEMORIA FELIX, lighted altar adorned with garlands, eagle standing on either side; P LN in exergue

Diameter: 25 mm
Die Orientation: 5 H
Weight: 5.54 g
Consecration issue struck by Constantine I
RIC 110; Sear 16419
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An AE Follis struck 302-303 AD in Treveri
Obverse: CONSTANTIVS NOB C, laureate and cuirassed bust right

Reverse: GENIO POPVLI ROMANI, Genius standing left, wearing modius and chlamys over shoulder, holding patera and cornucopia; S-F in fields/IITR in exergue

Diameter: 28 mm
Die Orientation: 5 H
Weight: 9.37 g

Ex Agoraauctions lot 39-184

RIC 539a
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An AE Follis struck 305-306 AD in Lugdunum
Obverse: IMP CONSTANTIVS AVG, Bust of Constantius facing left, wearing laurel wreath, and cuirass

Reverse: GENIO POPVLI ROMANI - Genius standing facing, head left, before lighted altar, modius on head & chlamys over left shoulder, holding patera & cornucopia, star in right field; PLC in exergue

Diameter: 30 mm
Die Orientation: 12 H
Weight: 9.61 g
Minted at the first officina in Lugdunum
RIC VI Lugdunum 187a
(5) Constantius I
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An AE Follis struck 305-306 AD in Heraclea
Obverse: IMP C FL VAL CONSTANTIVS PF AVG / laureate head right

Reverse: GENIO POPV-L-I ROMANI / Genius standing left, modius on head, naked except for chlamys over left shoulder, holding patera from which liquid flows, and cornucopiae. Mintmark: HTA

Diameter: -
Die Orientation: -
Weight: 10.59 g
No notes for this coin
RIC VI Heraclea 24a
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An AE Quarter-follis struck 305-306 A.D. in Siscia
Obverse: CONSTANTIVS AVG, laureate head right.

Reverse: GENIO POP-VLI ROMANI, Genius standing left, holding patera and cornucopiae

Diameter: 18.2 mm
Die Orientation: 0 H
Weight: 2.44 g

30

RIC VI Siscia 169a
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An AE Post-reform Radiate struck 295-296 AD in Heraclea
Obverse: radiate, cuirassed bust right; FL VAL CONSTANTIVS NOB CAES

Reverse: Constantius I standing right on left, holding scepter, receiving Victory on globe from Jupiter to right, holding scepter; CONCORDIA MILI_TVM / HB

Diameter: -
Die Orientation: -
Weight: 2.1 g
No notes for this coin
RIC VI Heraclea 15
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An AE Follis struck 300-301 AD in Rome
Obverse: laureate head right; CONSTANTIVS NOB CAES

Reverse: Moneta standing slightly left, holding scales and cornucopia; SACRA MON VRB AVGG ET CAESS NN / T club

Diameter: -
Die Orientation: -
Weight: 10.4 g
No notes for this coin
RIC VI Rome 102a
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An AE Follis struck c. AD 296-297 in Londinium
Obverse: FL VAL CONSTANTIVS NOB C, laureate and cuirassed bust right

Reverse: GENIO POPV-LI ROMANI, Genius standing left, holding patera and cornucopiae

Diameter: 26 mm
Die Orientation: 5 H
Weight: 10.23 g
No notes for this coin
CT 1.03.009 (2); RIC 30; Sear cf. 14034; S 706
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An AE Follis struck 305-306 AD in Ticinum
Obverse: IMP C CONSTANTIVS P F AVG, Head of Constantius facing right, wearing laurel wreath

Reverse: FIDES MILITVM, Fides seated on throne, facing left, holding military standards; dot in right field; TT in exergue

Diameter: 27 mm
Die Orientation: 7 H
Weight: 8.05 g
No notes for this coin
RIC VI Ticinum 59a
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An AE Follis struck c. AD 303-305 in Londinium
Obverse: CONSTANTIVS NOB C, laureate and cuirassed bust right

Reverse: GENIO POPV-LI ROMANI, Genius standing left, holding patera and cornucopiae

Diameter: 29 mm
Die Orientation: 5 H
Weight: 10.09 g
No notes for this coin
CT 3.01.024; RIC 37a
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An AR Argenteus struck 294-295 in an unknown location
Obverse: CONSTANTIVS CAES, laureate head right

Reverse: VIRTVS MILITVM, four emperors sacrificing at tripod altar before walled enclosure with six turrets

Diameter: 17 mm
Die Orientation: -
Weight: 2.7 g
No notes for this coin
No references provided for this coin