Carausius, AE antoninianus, London. 2.64 g, 23.50mm. 287-293 AD. Engraver's error. 

IMP CARAVSIVS PF AVG, radiate, draped and cuirassed bust right.
ADVENTVS AVG, Emperor riding left, holding sceptre, right hand raised, captive below.
Mintmark LM (instead of ML).

PAS no. FASAM-4AF414.
RIC V-2, London 10 var (mintmark); Sear 13551 var (ditto). TLA int. no. 78755.

Found in Diss, Norfolk, UK, 2016.

With permission of TimeLine Auctions 
(www.timelineauctions.com), Nov, 2016