XEE4189016 In Germany, interallied controls discovered, theoretically unarmed after the Treaty of Versailles, a laboratory or chemists developed new gases or new devices, in the hypothesis of a war. Illustration from ??????Le petit journal??????22/03/1925 Collection privee by Anonymous; Private Collection; (add.info.: In Germany, interallied controls discovered, theoretically unarmed after the Treaty of Versailles, a laboratory or chemists developed new gases or new devices, in the hypothesis of a war. Illustration from ??????Le petit journal??????22/03/1925 Collection privee); Stefano Bianchetti.