That looks like a classic tetradrachm (or similar) from the Philip of Macedon era. There are many variations on the 'head obverse / eagle reverse' design.
HOWEVER, to have three that are absolutely identical doesn't ring true (if you'll excuse the pun). Just as no two hammered medieval coins are identical due to striking methods, so the same applies to ancient coins.
Put the three side by side and take a photo, but crop out the vast border area you've got, and the site should accept it (500k per post is the limit). You can always post the reverse in a separate post in the same topic.