Allectus Emperor (usurper) of the Britannic Empire from 293 AD to 296 AD.
Allectus was a Roman-Britannic usurper-emperor in Britain and northern Gaul from 293 to 296.

Allectus was treasurer to Carausius, a Menapian officer in the Roman navy who had seized power in Britain and northern Gaul in 286. In 293 Carausius was isolated. Allectus assassinated Carausius and assumed command himself.

Allectus was defeated by an expeditionay force led by Constantius Chlorus in 296 AD, although it seems Constantius did not reach Britain until it was all over, and his panegyrist claims he was welcomed by the Britons as a liberator.

Coins of Allectus are fairly scarce, and usually command a price upwards of 100 USD.
Allectus
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An AE Quinarius struck AD 294-296 in Camulodunum
Obverse: IMP C ALLECTVS P F AVG, radiate and cuirassed bust right, with decorated shoulder straps

Reverse: LAETITIA AVG, galley right, with mast and six oars; QC in exergue

Diameter: 19 mm
Die Orientation: 6 H
Weight: 2.7 g
No notes for this coin
RIC 124; Sear 12867
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An BL Antoninianus struck AD 294-295 in Londinium
Obverse: IMP C ALLECTVS P F AVG, radiate and cuirassed bust right

Reverse: PAX AVG, Pax standing left, holding olive branch and vertical sceptre; S-A across fields, MSL in exergue

Diameter: 23 mm
Die Orientation: 5 H
Weight: 4.38 g
One of several coins purchased from the North Yorkshire Moors Collection formed by Marvin Lessen (Dix Noonan Webb; 25/04/18; Lot 100). Bt J.L. Malter December 1982
RIC 28; C 31; Sear 13818
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An AE Quinarius struck 293-296 AD in Camulodunum
Obverse: IMP C ALLECTVS PF AVG, Bust of Allectus facing right, wearing crown and cuirass

Reverse: VIRTVS AVG, Galley rowing left; QC mint mark in exergue

Diameter: 20 mm
Die Orientation: 12 H
Weight: 2.23 g
No notes for this coin
RIC V Allectus 128
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An BL Quinarius struck AD 295-296 in Londinium
Obverse: IMP C ALLECTVS P F AVG, radiate and cuirassed bust right

Reverse: VIRTVS AVG, galley left, with mast and five oars; QL in exergue

Diameter: 20 mm
Die Orientation: 6 H
Weight: 2.58 g
Roma Numismatics Auction XIX; Lot 910, Ex. Frank Reinhardt Collection; Bt. Marc Walter Ancient Coins, 2017; Ex. H.D. Rauch Auction 102 (2016); Lot 513, Ex. Bankhaus Aufhäuser Auktion 11 (1995); Lot 420
RIC 55; Burnett 111; Sear 13870; S 691
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An AE Antoninianus struck AD 293-296 in Camulodunum
Obverse: IMP C ALLECTVS P F AVG, radiate draped and cuirassed bust right

Reverse: PROVID AVG, Providentia standing left, holding globe and cornucopia; S-P across fields, C in exergue

Diameter: 24 mm
Die Orientation: 6 H
Weight: 3.19 g
CNG eAuction 468 (20.05.2020); Lot 560. Ex. Benito Collection; purchased in 2010 from CNG coin shop (Inventory ID 803623; sold for $895)
RIC 94; Burnett 160; Webb 150; Sear 13834