View source for 2589 - Istakhr (Baydad I) (tetradrachm Baydad/enthroned Baydad) over uncertain type (Triton, XXI, Jan. 2018, 567)

{{Overstrike
|Image overstriking coin=Baydad_Triton_XXI, _9_Jan_2018, _567.jpg
|Image reference overstriking coin=https://www.acsearch.info/search.html?id=4673680
|Sale=Triton XXI, 9 Jan 2018, 567
|Private collection=Nisa Collection
|Obverse description=Head of Baydad right, with short beard and mustache, wearing earing, satrapal cap (kyrbasia) with flaps tied behind and diadem. Border of dots.
|Reverse legend=bgdt prtrk' zy lhy bgwrt (="Baydad, son of Bagawart, dynast of the Gods")
|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=16.82
|Diameter=29.5
|Axis=3
|Denomination=tetradrachm
|Standard=Attic
|Coin series reference=Alram 1986, n° 513; Nelson 2011, n° 559; Van't Haaff 2020, p. 63, n° 511;
|Coin series web reference=https://greekcoinage.org/iris/id/persepolis.baydad.klose_museler.2008.2.1-2
|Overstruck period=Hellenistic
|Frequency of overstrikes=frequent
|Level of confidence=sure
|Remarks="Overstruck on an uncertain mint tetradrachm of Alexander III type, likely an issue of Seleukos I." (nb: not enough visible traces to be sure)
}}