Carausius, AV aureus. London mint, 286-287, 4.20 g. 

IMP CARAVSIVS P F AVG, laureate, draped, cuirassed bust right.
PAX CARAVSI AVG, Pax standing left, holding olive-branch 
and vertical sceptre. 
RIC 5; Depeyrot 2/5; Shiel 4; Calicó 4782.

Second specimen known.
With permission of Numismatica Ars Classica, auction
46, lot 684.