Diocletian, Billon quinarius. Rome. AD 285. 14 mm, 1.4 g.

DIOCLETIANVS AVG, jugate, laureate busts left of Jupiter (behind), and Diocletian (in front), laureate and cuirassed, holding spear over shoulder, and shield.
IOVI CONSERVAT, Jupiter standing left, holding thunderbolt and sceptre, eagle at foot left. 

RIC VII 192 var (reverse legend ends with AVG).

Sold by Heritage World Coin Auctions NYINC Signature Sale 3071	(Morris collection), lot 32233, Jan. 2019