Julia Domna, but rev. legend ends with Septimius' COS. Denarius; Julia Domna, but rev. legend ends with Septimius' COS; Rome, 193 AD, Denarius, 3.28g. Obv: IVLIA DO - MNA AVG, Bust draped r. Rx: VENERI - VI COS (sic) on l. and r., Venus standing r., leaning on column, holding apple and palm branch. Ex Curtis L. Clay Collection; acquired from Dionysos, eBay, 4 Feb. 2012. The reverse legend on this coin, meant to be VENERI VICTR, seems to contain an interesting error: it starts correctly with VENERI VI or VENERI VIC, but then adds COS or just OS, as though the coin were of Septimius Severus in 193, with reverse legend ending COS, rather than of Julia Domna. The engraver's error provides welcome confirmation that Domna's Roman coinage probably began before the end of 193, while Septimius was still only COS and not yet COS II.. gVF