 After the Armistice, Otto tried automobile manufacturing, but in 1919 had to dismiss the employees of the Berlin company and divest himself of the Oschersleben factory.He himself withdrew to Lake Starnberg where he died in 1926.The company continued, and in the same year developed 20 new hectares of factory space near the "Sudenburger Maschinenfabrik und Eisengießerei AG" plant at Magdeburg.