Tacitus, Serdica, Antoninianus IMP C M CL TACITVS AVG, Radiate draped and cuirassed bust right. CONSERVAT MILIT, Mars, holding scepter, presenting globe to Tacitus standing on left facing him and holding a sceptre. S in exergue Ref: Estiot 2386, La Venera 1731 Contributed by David Ruckser, October 2009.