Bronze, 9.04 grams, 23.83 mm. Baktria. 20-40 AD (Posthumous). Obverse: BASILEWS SWTHPOS ERMAIOU, diademed bust of king right. Reverse: Karosthi legend "Maharajasa tradatasa Heramayasa", Zeus, laureate, seated left on throne with back, his right hand outstretched and holding sceptre in left; P over X in square monogram to left; uncertain letter to right. BOP 20; BMC 26; Sear 7738. Good fine.
A significant coin which has been published on wildwinds.com