ROMAN REPUBLIC. Q. Cassius Longinus. AR Denarius (3.98 gms), Rome Mint, ca. 55 B.C.Cr-428/3; S-391; Syd-916. Head of Genius Populi Romani facing right, scepter over shoulder; Reverse: Eagle on thunderbolt facing right, lituus in left field, jug in right. Test mark.Ex: MacCormack Collection (assembled ca. 1868-1900).