This silver stater depicts Pegasos stepping right, with Athena wearing a Corinthian helmet on the reverse. Although the Pegasos and Athena designs were widely used throughout the Corinthian colonies, the quality of engraving varied considerably between issues. The dies used for this particular series are especially well executed, with a finely proportioned Pegasos, carefully articulated wings, and a graceful treatment of the horse's body and movement. The engraving is notably superior to that found on many other Corinthian style staters of the period.

Beneath Pegasos is the letter A, identifying the issuing city of Ambrakia. The reverse features an attractive small facing head of Acheloos beside Athena. Acheloos was one of the most important river gods in Greek mythology, associated with the river of the same name in western Greece. He was frequently represented as a man-headed bull and was best known for his struggle with Herakles over Deianeira, daughter of King Oineus of Kalydon. According to the myth, Acheloos transformed himself into a bull during the contest, but Herakles defeated him and broke off one of his horns. In this example, the facing head is unusually complete and clearly defined, complementing the exceptionally fine engraving of Pegasos on the obverse.