A small group of some twenty identical bronze coins with a “sacrificial bull” reverse come from a Hellenistic wreck of the early 3rd century B.C. found off La Tour Fondue at the tip of the Giens peninsula, Var, France. Despite their unmistakable Massaliot appearance and excellent style, these early pieces differ in a number of ways from the usual series. By considering also other coins of this type, from excavations at Olbia, finds from England, and others of various origin, we hope to demonstrated that the issue was the first chalkos struck by Massalia. It next went on to serve as a model for cast potins issued in England (the Kentish Primary Series, or “Thurrock type”), as well as in a number of places in Gaul.