View source for 3177 - Alexandria (Ptolemy I) (tetradrachm Alexander/Athena CPE 72) over uncertain type (Helios, 4, Oct. 2009, 62)

{{Overstrike
|Sale=Helios, 4, 14 Oct. 2009, n° 62
|Obverse description=Head of the deified Alexander III to right, wearing a diadem with the horn of Zeus Ammon, an elephant skin headdress and aegis around his neck. Border of dots.
|Reverse legend=ΑΛΕΞΑΝΔΡΟΥ
|Reverse legend language=Greek
|Reverse description=Athena Alkidemos advancing to right, brandishing spear with her right hand and with a shield on her left arm. In the right field, Corinthian helmet, below ΔΙ and eagle on thunderbolt. Border of dots.
|Mint=Alexandria
|Ancient region=Egypt
|Authority=Ptolemy I Soter (satrap and Ptolemaic king of Egypt, 323-305 BC); Alexander III the Great (Argead king, 336-323 BC); Ptolemaic dynasty (323-30 BC)
|Date from=306 BCE
|Date to=305 BCE
|Period=Hellenistic
|Metal=Silver
|Weight=15.64
|Denomination=tetradrachm
|Standard=Ptolemaic
|Coin series reference=Svoronos 1904-1908, n° 169; Zervos 1967; CPE I, n° 72
|Coin series web reference=https://numismatics.org/pco/id/cpe.1_1.72
|Frequency of overstrikes=rare and concentrated
}}