Curriculum vitae, application and health certificate, 1907; correspondence about Glitz' training as a boatman, 1908; certificate about the qualification for coastal navigation, 1908; instruction for Gustav Glitz, 1908; letters and reports from Hong Kong and New Guinea, 1908-1911; "Sketch of the old steam engine" and boiler, scale 1:10, 1908; employment certificate, 1921