In September 1825, the French colonel Arnault together with French engineers, sent by the Charitable Committee of Paris, arrived in Greece. Arnault founded an Arsenal in Nafplion, incorporating the old Armory for the construction of cannons and light firearms as well as polearms and explosives. The Nafplion Arsenal, which operated with minor interruptions until the first years of King George the first’s reign, can be considered one of the first small industries of Modern Greece.