View source for 2912 - Alexandria (Ptolemy I) (tetradrachm Alexander/Athena CPE 69) over Alexander the Great (Heracles/Zeus) (MacDonald coll., 143)

{{Overstrike
|Private collection=D. MacDonald collection, n° 143
|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. Before elephant's ear, Δ. 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 monogram (AX) 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=15.69
|Axis=1
|Denomination=tetradrachm
|Standard=Ptolemaic
|Coin reference=MacDonald 2009, p. 190-191, n° 143
|Coin series reference=Svoronos 1904-1908, n° 162; MacDonald 2009, p. 190-191, n° 143; CPE I, n° 69
|Coin series web reference=https://numismatics.org/pco/id/cpe.1_1.69
|Overstruck obverse description=Head of Herakles right, wearing lion skin (visible: nose, mouth, chin, and portion of back of lion skin in field on reverse).
|Overstruck reverse description=Zeus seated left, holding eagle and staff. In fields, monograms (visible: outline of Zeus's head and shoulders, upper portion of staff on upper portion of elephant skin; lower portion of staff and three feet of throne in field near edge of coin before Alexander's mouth and chin).
|Overstruck ancient region=Macedon
|Overstruck authority=Alexander III the Great (Argead king, 336-323 BC); Macedonian kingdom
|Overstruck date from=332 BCE
|Overstruck date to=300 BCE
|Overstruck period=Hellenistic
|Overstruck denomination=tetradrachm
|Overstruck standard=Attic
|Coin series reference overstruck=Price 1991
|Frequency of overstrikes=rare and concentrated
}}