Watch List notes:

Carausius Æ Radiate. Uncertain mint (possibly Rutupiae?), AD 287-293. [...] [CARAVSI]VS P AVG, radiate and draped bust to right / [...], Emperor riding right, holding spear above head; RSR in exergue. Not in the standard references; cf. RIC V.2 1036 and Webb 590 (denarius). 3.25g, 18mm, 9h.

Good Fine. Apparently unpublished and possibly unique.

From a private UK collection.