Crispus Caesar of the Roman Empire from 317 to 326.
Flavius Julius Crispus was a Caesar of the Roman Empire. He was the first-born son of Constantine I and Minervina. He was well liked by his father and the army, and was the most likely successor to the imperial reins.

However, in 326 Crispus was suddenly tried by a local court in Istria and executed - at his fathers orders, no less.

Ancient hisorians claim that his step-mother, Fausta, had accused him of attempted rape. Always short tempered, Constantine immediately had his son executed. A few months later, Constantine reportedly found out the whole truth and had Fausta boiled to death.
Crispus
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An AE Follis struck 320-321 AD in Siscia
Obverse: IVL CRISPVS NOBC

Reverse: CAESARVMNOSTRORVM, VOT V inside wreath

Diameter: 19 mm
Die Orientation: 0 H
Weight: 3.1 g
No notes for this coin
Sear 16752?
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An AE Follis struck 320-321 AD in Siscia
Obverse: IVL CRISPVS NOBC

Reverse: CAESARVMNOSTRORVM, VOT V inside wreath

Diameter: 18 mm
Die Orientation: 0 H
Weight: 2.7 g
No notes for this coin
Sear 16754
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An AE Follis struck 319-320 AD in Ticinum
Obverse: CRISPVS NOB CAES, Bust of Crispus facing left, wearing laurel wreath and cuirass, holding spear and shield

Reverse: VIRTVS EXERCIT, Military standard with VOT XX inscribed in two lines; captives at left and right; TT in exergue

Diameter: 20 mm
Die Orientation: 6 H
Weight: 2.55 g
Crispus as Caesar under Constantine I "the Great"
Third officina at Ticinum
RIC VII Ticinum 117
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An AE Follis struck 321-324 AD in Cyzicus
Obverse: DN FL IVL CRISPVS NOB CAES, Bust of Crispus facing right, wearing laurel wreath, cuirass, and drapery

Reverse: IOVI CONSERVATORI, Jupiter standing facing, head left, holding Victory on globe and scepter, eagle holding wreath in mouth at left, bound captive at right; XIIΓ in right field; SMKΓ in exergue

Diameter: 20 mm
Die Orientation: 11 H
Weight: 3.28 g
The prevailing theory is that X over II "Γ" (the closest thing to that symbol) was meant to value these at 12 1/2 denarii

Minted at the third officina in Cyzicus
RIC VII Cyzicus 17
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An AE Follis struck 324 A.D. in Thessalonica
Obverse: FL IVL CRISPVS NOB CAES

Reverse: CAESARVM NOSRORVM VOT X in wreath

Diameter: 18.6 mm
Die Orientation: 0 H
Weight: 2.8 g
No notes for this coin
RIC Thessalonica 125
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An AE Follis struck 326 A.D. in Treveri
Obverse: FL IVL CRISPVS NOB CAES, laureate, draped, cuirassed bust left

Reverse: PROVIDEN-TIAE CAESS, campgate; 2 turrets, 6 layers, no doors. Mintmark STR dot-in-crescent.

Diameter: 19 mm
Die Orientation: 0 H
Weight: 2.3 g

25

RIC VII 477
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An AE Follis struck 317-320 A.D. in Cyzicus
Obverse: DN FL IVL CRISPVS NOB CAESS, laureate bust left, draped, holding globe, sceptre and mappa

Reverse: IOVI CONSER-VATORI CAESS, Jupiter leaning on sceptre and holding Victory on globe, wreath to left, officina letter Δ to right. Mintmark SMK.

Diameter: 17 mm
Die Orientation: -
Weight: 3.08 g
Officina 4
RIC VII 10, Δ
(8) Crispus
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An AE Follis struck 317 AD in Aquileia
Obverse: laureate, draped and cuirassed bust right; CRISPVS NOB CAES

Reverse: soldier standing left, wearing helmet and cloak, holding spear and resting hand on shield; PRINCIPIA I_V_VENTVTIS / AQT

Diameter: 0 mm
Die Orientation: 0 H
Weight: 3.4 g
No notes for this coin
RIC VII Aquileia 9
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An AE Centenionalis struck 324 AD in Thessalonica
Obverse: laureate, draped and cuirassed bust left; FL IVL CRISPVS NOB CAES

Reverse: VOT / · / X within wreath; CAESARVM NOSTRORVM / TSΔVI

Diameter: 19 mm
Die Orientation: -
Weight: 3.21 g
No notes for this coin
RIC VII Thessalonica 125
(10) Crispus
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An AE Centenionalis struck 320-321 AD in Siscia
Obverse: laureate head right; IVL CRIS_PVS NOB C

Reverse: VOT / V within wreath; CAESARVM NOSTRORVM / ASIS*

Diameter: -
Die Orientation: -
Weight: 3.2 g
No notes for this coin
RIC VII Siscia 161
(11) Crispus
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An AE Nummus struck AD 317 in Londinium
Obverse: CRISPVS NOB CAES, laureate, draped and cuirassed bust right

Reverse: SOLI INVIC-TO COMITI, Sol standing left, chlamys across left shoulder, right hand raised, left hand holding up globe; S-P across fields, PLN in exergue

Diameter: 20 mm
Die Orientation: 6 H
Weight: 3.32 g
This coin was purchased directly from Lee Toone, author of LMCC, and is one of the plate coins from his book. He informed me that the coin originally came from a large French hoard.
CT 8.09.021 (this coin); RIC 116; Sear 16718
(12) Crispus
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An AE Follis struck 320 in Lugdunum
Obverse: D N CRISPO - NOB CAES or D N CR-ISPO - NOB CAES: Bust of Crispus, laureate, cuirassed, right

Reverse: VICTORIAE LAET PRINC PERP: Two Victories, winged, draped, facing each other, holding a shield inscribed VOT/PR supported by an altar

Diameter: 3.19 mm
Die Orientation: -
Weight: 17 g
No notes for this coin
RIC VII 83
(13) Crispus
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An AE Centenionalis struck 324 - 325 AD in Nicomedia
Obverse: FL IVL CRIS-PVS NOB C: Bust of Crispus, laureate, draped, cuirassed, left

Reverse: PROVIDEN-TIAE CAESS: Camp gate with two turrets, without doors, with varying number of stone layers; star above. MintMark: -/-//SMNB

Diameter: 19.6 mm
Die Orientation: -
Weight: 3.18 g
No notes for this coin
RIC VII Nicomedia 92