I've never heard of 'Armleder.' There is a .de Wikipedia page, but I could not find a corresponding en. Wikipedia page which would be in English. https://de.m.wikipedia.org/wiki/Armleder_(Nutzfahrzeughersteller) Apparently, the Armleder Co. was located in the German section of Cincinnati, making wagons, then they either converted to truck production, or started a new company under the same name.