KINGS of PARTHIA. Uncertain Usurper (Tiridates?). April/May-October/December 27 BC. BI Tetradrachm (29mm, 14.74 g, 12h). Seleukeia on the Tigris mint. Dated 285 SE (27 BC). Diademed bust left / Phraates seated left, holding Nike, who crowns him with wreath, and scepter; date below throne, month off flan. Sellwood 55.4 (Tiridates); Sunrise 397 var. (month visible in exergue); Shore 309 var. (same); Callataÿ 79-86 . toned, porosity, graffiti on reverse. VF.