Bactria, Athenian Series. Tetradrachm; Bactria, Athenian Series; Uncertain mint in the Oxus region, c. 261-238 BC, Tetradrachm, 16.79g. Bopearachchi-Sophytes Serie 1A. Obv: Head of Athena r., monogram behind. Rx: Owl standing r., head facing; olive sprig and crescent behind. Ex Roma XIX, 26 March 2020, lot 623. From the 1960s Andragoras-Sophytes Group, present in Germany in 1975, subsequently exported to the USA. From The Mark Gibbons Collection.. EF