Contains among other things: Construction of an own telegraph line between Beijing and Tongku (agreement of the Prussian Minister of War), May 1902 completion of the telegraph line Beijing - Tongku by the East Asian occupation brigade, Sept. 1902 Purchase of a plot of land in Woosung for the company Felten - Guilleaume, Mülheim, as a cable landing site, March 1904 Question of compensation for the relocation of the German cable Woosung - Tsingtau because of the river regulation of the Whangpoo, June 1907, Sept. 1907, Sept. 1911 Route of the telegraph cable near Woosung (sketch, print), n.d. Regulation of the Whangpoo (planning pause), 29 July 1912 Report on the second relocation of the German cable in the Whangpoo due to dredging work, Aug. 1912, Sept. 1912, Oct. 1912 Closure of the cable station of the German-Dutch telegraph company by the Chinese government, Nov. 1917

Contains among other things: Site plan of the plot intended for the construction of the new court (corner of Irenenstraße-Hohenloheweg-Gouvernementsplatz), sheet no. 10, scale 1 : 500, Oct. 1911 (fol. 22, 40) Photographs of the projected building site and court building (fol. 39) Construction plans: Court building in Tsingtau, sketch for the construction of the western border wall, scale 1 : 100, Feb. 29, 1912

Purchase contract for land for children's house, 1854; purchase contract, correspondence, replacement e. hereditary lease, construction plans, cost estimate for purchase and conversion of the old Loher School, 1858/59; Bauconsens, cost estimate, plans for the new Loher School, 1858/59. New building of a back house at the mission house, 1860; purchase contract for e. Wiese am Loh, 1861; cost estimates and craftsman contracts for e. extension of the mission house, 1861; sketch and explanation for a new mission house, 1873