German company, based in Berlin. Known addresses: Kürassierstrasse 3 and Lichterfelde-West Kadettenweg 2. Full name Argument-Füllhalterfabrik, Georg Karasch, Berlin. The company was founded in the '20s and remained on the market until the '60s. Known models: Argument 33 (safety). In 1932, according to the this advertisement editorial, it introduced the Argument Kristallo model with a transparent tank.