Bactro-Sogdiana, Diodotus I as Satrap. Tetradrachm; Bactro-Sogdiana, Diodotus I as Satrap; 256-239 BC, Tetradrachm, 16.27g. Bop-Series 2, 2. Obv: Diademed head of Diodotus I r. Rx: BASI?EOS on r., ANTIOXOY on l., Naked Zeus advancing l., brandishing thunderbolt in r. hand and with aegis draped over extended l. arm; at his feet, eagle standing l.; in l. field trident-shaped monogram. Ex Frank Kovacs, Mail Bid Sale XIV, 1998, lot 80. The Antiochus named on reverse is the Seleucid monarch Antiochus II, 261-245 BC.. F