Silver denarius, 18mm, 3.11gm, issued AD 190/191 Rome mint.
Obv: M COMM ANT P FEL AVG BRIT PP, Laureate head right.
Rev: ROMAE FELICI COS VI, Roma, helmeted, draped, seated left on shield, holding Victory in extended right hand and vertical spear in left hand.
References: Sear 5691, RIC 228, RSC 652.