Roman Imperial Coinage, Carausius, Denarius, London, 286-7, laureate draped and cuirassed bust right, imp caravsivs pf avg, rev. conser a, Neptune seated left with anchor and trident, rsr in exergue, 3.06g (cf. RSC 34; cf. RIC 553; cf. Sear 13506). Obverse about very fine, reverse good fine, extremely rare £2,000-2,500

Sam Moorhead kindly points out that this precise obverse legend is not normally found on coins with the rsr mark. The reverse die is known from only one other specimen (Hunterian Collection, 162)