Rare type of monogram.
Greece
Macedonia, Antigonos I Monophthalmos, Drachm in the name and types of Alexander III 310-301 BC, Lampsakos mint, struck under Strategos or king of Asia
Obverse: head of Heracles covered with lion skin facing right
Reverse: Zeus seated on the throne facing left, holding the eagle in his right hand and a scepter in the left under the throne, amphora to left, Θ below throne
ΑΛΕΞΑΝΔΡΟΥ
Diameter 17 mm, weight 4.29 g