Contains among other things: Construction and equipment of the government residential building in Tsingtau Construction plans Sketches of types of strip and parquet flooring Blue-print sketches of the harbour construction service building of the commercial harbour near Hsiaubautan Sketch for accounting the calculation of the converted space, ground floor plan, ground floor plan of the basement rooms, 1 2: 200, 15 Jan. 19]04 (Fol. 222); Sketch for the calculation of the enclosed space Ground floor plan, floor plan of the basement rooms, 1:200, (Fol. 23) Blueprint sketches of the harbour construction service building of the trading port Hisaubautan Sketch for the calculation of the enclosed space, ground floor plan, floor plan of the basement rooms, 1 : 200, 15 Jan. [1904] (Fol. 222)