View source for 2570 - Istakhr (Baydad I) (tetradrachm Baydad/enthroned Baydad) over Alexander type (Heracles/Zeus) (van't Haaff 2020, 511d)

{{Overstrike
|Obverse description=Head of Bagadat right, wearing earring, satrapal cap (kyrbasia) and diadem. Border of dots.
|Reverse legend="Baydad, son of Bagawart, dynast of the Gods" (Aramaic)
|Reverse legend language=Aramaic
|Reverse description=Baydād enthroned left, wearing long cloak and kyrbasia, holding sceptre and cup. To left, standard.
|Mint=Istakhr (Persepolis)
|Ancient region=Persis
|Authority=Baydad I of Persis; Kingdom of Persis
|Date from=299 BCE
|Date to=250 BCE
|Period=Hellenistic
|Metal=Silver
|Weight=16.96
|Diameter=29
|Denomination=tetradrachm
|Standard=Attic
|Coin reference=Engels 2013, pl. 2, g  ; van't Haaff 2020, p. 63, n° 511 d
|Coin series reference=D. Klose and W. Müseler, Statthalter Rebellen Könige - Die Münzen aus Persepolis von Alexander dem Großen zu den Sasaniden, Munich, 2008, 2/2;P. A. van't Haaff, Catalogue of Persis Coinage, Ca. 280 B.C. - A.D. 228, 2020, p. 63, no. 511.
|Overstruck mint=Macedonia (uncertain mint)
|Overstruck ancient region=Macedon
|Overstruck authority=Alexander III the Great (Argead king, 336-323 BC)
|Overstruck date from=332 BCE
|Overstruck date to=250 BCE
|Overstruck period=Hellenistic
|Overstruck denomination=tetradrachm
|Overstruck standard=Attic
|Frequency of overstrikes=frequent
}}