View source for 1673 - Mesembria (Alexander the Great) (tetradrachm Heracles/Zeus) over Alexander the Great (New York, ANS, 1951.90.38)

{{Overstrike
|Image overstriking coin=DB_Overstrikes_782.png
|Image reference overstriking coin=Museum website
|Image overstruck variety=Alexander the great tetradrachm.jpg
|Image reference overstruck variety=https://pro.coinarchives.com/a/lotviewer.php?LotID=1953527&AucID=4610&Lot=4198
|Museum collection=New York, American Numismatic Society, 1951.90.38 (http://numismatics.org/collection/1951.90.38)
|Archaeological context=IGCH 888 (Propontis hoard)
|Obverse description=Head of Herakles right, wearing lion skin headdress.
|Reverse legend=BAΣΙΛΕΩΣ AΛΕΞANΔΡΟΥ
|Reverse legend language=Greek
|Reverse description=Zeus enthroned left, holding eagle and scepter. Under the throne, monogram (ΔΙ). In left field, Corinthian crested helmet.
|Mint=Mesembria
|Ancient region=Thrace
|Authority=Alexander III the Great (Argead king, 336-323 BC)
|Date from=250 BCE
|Date to=175 BCE
|Period=Hellenistic
|Metal=Silver
|Weight=16.87
|Diameter=30.5
|Axis=12
|Denomination=tetradrachm
|Standard=Attic
|Coin series reference=Price 1991, n° 1000 ; Karayotov 1992, n° 67 ; Karayotov 1994, p. 87, n° 119 (O28-R60 monogram 18) ; Callataÿ 2021a, p. 275, n° 1 ; Waggoner 1979, p. 11, n° 19; MacDonald 2009, p. 212, n° 1
|Coin series web reference=http://numismatics.org/pella/id/price.1000
|Overstruck obverse description=Head of Herakles right, wearing lion's skin (visible: profile).
|Overstruck authority=Alexander III the Great (Argead king, 336-323 BC)
|Overstruck date to=175 BCE
|Overstruck period=Hellenistic
|Overstruck denomination=tetradrachm
|Overstruck standard=Attic
|Frequency of overstrikes=exceptional
|Level of confidence=strong
}}
Date: c. 250-175 BC (PELLA) ; c. 225-175 BC (Period II, Karayotov)