Unknown Ancient Coin - Please Help!

Hello everyone,
Please excuse me, but I know absolutely nothing about Ancient coins. I probably know less than I think I do! But, I found this ancient coin in my collection the other day and was wondering what it was. It is a little less than 2.5 centimeters in diameter and weighs approximately 9.1 grams.It appears to be in good condition for a coin this old, but I'm not exactly sure who the ruler is, where it is from, the date, value, etc. I have included a picture of the original 2x2 I received it in, if it helps. Any information would be greatly appreciated. Thanks!
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ANA Life Member & Volunteer District Representative
2019 ANA Young Numismatist of the Year
Doing my best to introduce Young Numismatists and Young Adults into the hobby.
Comments
It's an Alexandrian Tetradrachm of Gallienus. Attribution would be below:
Gallienus (A.D. 253-268)
EGYPT, ALEXANDRIA
Potin Tetradrachm
O: AVT K P LIK GALLIHNOC CEB, laureate and cuirassed bust right.
R: Eagle standing left, head right, holding wreath in beak, L ID (date) before, palm behind
Dated year 14 (A.D. 266/7)
(Köln 2932; Dattari 5283; Milne 4145)
It's a nice example, worth about $50-$60.
Wow that was quick. Thanks for the info! I love how original the coin appears.
Instagram - numismatistkenny
My Numismatics with Kenny Blog Page Best viewed on a laptop or monitor.
ANA Life Member & Volunteer District Representative
2019 ANA Young Numismatist of the Year
Doing my best to introduce Young Numismatists and Young Adults into the hobby.