Stater

The stater, as a Greek silver currency, first as ingots, and later as coins, circulated from the 8th century BC to AD 50.

The earliest known stamped stater (having the mark of some authority in the form of a picture or words) is an electrum turtle coin, struck at Aegina[2] that dates to about 650 BC.

Celtic tribes brought the concept to Western and Central Europe after obtaining it while serving as mercenaries in north Greece.

[7] Gold staters were minted in Gaul by Gallic chiefs modeled after the philippeioi of Philip II of Macedonia, which were brought back after serving in his armies, or those of his son Alexander the Great and his successors.

The coin was a Celtic imitation of the Alexander the Great stater, depicting Nike and Athena, and dates back to the first half of the 3rd century B.C.