Constantius Gallus Caesar of the Roman Empire from 351 to 353.
Flavius Claudius Constantius Gallus , commonly known as Constantius Gallus, was a member of the Constantinian dynasty and Caesar of the Roman Empire from 351 to 354.

Gallus was a half-first cousin to the sons of Constantine the Great; Constans, Constantine II & Constantius II. In 350, Magnentius had rebelled, killed the emperor Constans, and proclaimed himself emperor. Constantius II prepared to move against the usurper, but needed a representative in the East, so he called Gallus at Sirmium and raised him to the rank of Caesar.

However, he conducted his official responsibilities withsuch harshness and cruelty that Constantius II recalled him to Milan, and then had him arrested and executed before he reached Italy.
Constantius Gallus
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An BL Maiorina struck 351-352 AD in Sirmium
Obverse: DN CONSTANTIVS IVN NOB C, bare-headed, draped, and cuirassed bust right

Reverse: FEL TEMP REPARATIO, soldier rushing left holding shield on left arm and spearing a fallen horseman whose mount has stumbled beneath him, shield on ground to right

Diameter: 22 mm
Die Orientation: 0 H
Weight: 4.8 g
No notes for this coin
Sear 18974
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An AE Maiorina struck 353-354 AD in Siscia
Obverse: DN CONSTANTIVS IVN NOB C, bare-headed, draped, and cuirassed bust right

Reverse: FEL TEMP REPARATIO, soldier rushing left holding shield on left arm and spearing a fallen horseman whose mount has stumbled beneath him, shield on ground to right

Diameter: 19 mm
Die Orientation: 0 H
Weight: 1.5 g
No notes for this coin
Sear 19014
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An BL Maiorina struck AD 352-353 in Siscia
Obverse: DN CONSTANTIVS IVN NOB C, bare-headed, draped, and cuirassed bust right, A behind bust

Reverse: FEL TEMP REPARATIO, soldier rushing left holding shield on left arm and spearing a fallen horseman whose mount has stumbled beneath him, shield on ground to right

Diameter: 22 mm
Die Orientation: 0 H
Weight: 4.3 g
No notes for this coin
Sear 18969
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An AE Maiorina struck AD 353-354 in Constantinopolis
Obverse: D N FL CL CONSTANTIVS NOB CAES, bare-headed, draped, and cuirassed bust right

Reverse: FEL TEMP REPARATIO, soldier rushing left holding shield on left arm and spearing a fallen horseman whose mount has stumbled beneath him, shield on ground to right, • left

Diameter: 18 mm
Die Orientation: 12 H
Weight: 1.8 g
No notes for this coin
Sear 19018
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An AE Centenionalis struck 351-354 A.D. in Siscia
Obverse: DN CONSTANTIVS IVN NOB C, bare-headed, draped, cuirassed bust right, A behind head

Reverse: FEL TEMP RE-PARATIO, soldier spearing fallen horseman who is bare-headed, reaching backwards. II in left field.

Diameter: 20 mm
Die Orientation: 0 H
Weight: 4.1 g

15

RIC VIII 343
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An AE Maiorina struck 351-353 A.D. in Rome
Obverse: DN FL CL CONSTANTIVS NOB CAES, bare-headed, draped, cuirassed bust right, B behind head

Reverse: FEL TEMP RE-PARATIO, soldier spearing fallen horseman who is wearing a Phrygian helmet, and clutching horse's neck. Left field:Γ. Mintmark R wreath S.

Diameter: 20 mm
Die Orientation: 0 H
Weight: 5 g
No notes for this coin
RIC VIII Rome 258
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An AE Centenionalis struck 351-354 AD in Sirmium
Obverse: bare, draped and cuirassed bust right; D N CONSTANTIVS IVN NOB C

Reverse: soldier spearing falling horseman; FEL TEMP__REPARATIO / ASIRM·

Diameter: 17.5 mm
Die Orientation: -
Weight: 1.99 g
28.9.351- winter 354 AD
Sirmium 53
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An AE Maiorina | Centenionalis struck 352-354 AD in Rome
Obverse: draped and cuirassed bust right; D N FL CL CONSTANTIVS NOB CAES

Reverse: soldier spearing falling horseman (Phrygian helmet); FEL TEMP RE_PARATIO / S / R S

Diameter: -
Die Orientation: -
Weight: 4.63 g
26.9.352 - winter 354 AD
RIC VIII Rome 268
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An AE Maiorina struck 351-354 AD in Siscia
Obverse: draped and cuirassed bust right; D N CONSTANTIVS IVN NOB C / A

Reverse: soldier spearing falling horseman (bare-headed); FEL TEMP RE_PARATIO / III / ΓSIS

Diameter: -
Die Orientation: -
Weight: 4.13 g
28 Sep 351 - winter 354 AD
RIC VIII Siscia 333