Watch List notes:

Carausius. Romano-British Emperor, A.D. 287-293. AE antoninianus (21 mm, 4.90 g, 7 h). London. IMP CARAVSIVS P F [AVG], radiate, draped, and cuirassed bust right / PAX AVG, Pax standing left, holding branch and scepter. RIC 880. Good VF, green and gray-brown patina. 

Ex Elwood Rafn Collection.