Very rare type of Augustus denarius, occasionally found in trade.
Roman Imperial
Octavian Augustus (27 BC-14 AD), Denarius 17-16 BC, uncertain Spanish mint, probably Colonia Patricia
Obverse: head of August facing right
SPQR CAESARI AVGVSTO
Reverse: Mars, nude but for sagum from shoulders over left arm, standing left on ground line, holding vexillum in right hand and cradling parazonium in left
VOT P SVSC PRO SAL ET RED I OM SACR
Weight 3.5 g