Several documents remain from Arthur Frank:
a certificate dated 9 October 1917 awarding him the 'Verdienstkreuz für Kriegshilfe' of the Königlich Preussischen Orden
a driving licence with a photo, valid for semi-trailers and issued in Magdeburg on 27 October 1928
an excerpt from the trade register of the Twente Chamber of Commerce and Factories, indicating that Arthur Frank was a partner in …