Autopsie épigraphique d’une émission monétaire: Le cas du nouvel amphictionique à Delphes (336–335 av. J.-C.)

At the end of the Classical period, while the Macedonians had great influence over mainland Greece, the Delphic Amphictyony successively implemented two fundamental monetary reforms. The first reform, between Spring 336 BCE and Spring 335 BCE, created a full-weighing Aeginetic coinage, with the Amphictyonic name and types. This “new amphictyonic” was intended to replace the reduced coins (5.80g per drachma) used in the Peloponnese and Central Greece. The second reform, in Spring 335 BCE, accepted the reduced weight of the existing Aeginetic coins by applying a revaluation of the exchange rate between the Attic drachma (4.35g) and the reduced Aeginetic drachma (5.80g), from 10 to 7 to 10 to 7.5 (ἐπικαταλλαγή). This reform also modified the Attic and Aeginetic bronze–silver ratio (from 105:1 to 112.5:1), and impacted the weight standards (mina weighing 112 drachmae) as well as the Hellenistic monetary standards (light silver drachma worth one bronze mina).