Carausius billon antoninianus, uncertain mint. AD 286-297. 19 mm, 2.69 g.

IMP (C MA C)ARAVSIVS AVG, radiate, cuirassed bust right.
PIETAS AVG, Pietas standing left by altar. 
No mintmark.

Bust type var of RIC V-2, 944 (uncertain British mint) 944 and Naville 45 in RIN 1905.

With permission of Naville Numismatics auction 47, lot 611, March 2019.