Unknown manufacturer;
Inscription: "Deutsche Post"; front side

Contains: Chinese characters, tactical characters, German pencil notes to the tactical characters

Contains: Chinese characters, no markings

Contains: Chinese characters, cross-section drawings of 18 trenches

Contains: Chinese characters, cross-section drawings of 35 trenches

Contains: Chinese characters, cross-section drawings of 35 trenches

Contains: Chinese characters

Contains: Chinese character entries: Units/units and sections in blue, with Arabic and Roman numerals

Contains: Chinese character inscriptions: Positions and trenches in red and blue

Contains: Chinese character entries: positions in red and blue, partly with Arabic and Roman numerals different position lines in blue, brown, green and violet

Contains: Chinese character entries: Positions and trenches in red and blue

Contains: Chinese character entries: Positions and trenches in red and blue

Contains: Chinese characters, entries: Positions in red, blue, brown, green and violet Additional overview map with entries

Contains: Top views of three (presumable) infantry works Cross sectional drawings in addition further top views and cross sectional drawings Drawings of wire obstacles Chinese characters

Contains: Top views of two (presumable) infantry works Cross sectional drawings in addition further top views and cross sectional drawings Legend, Chinese characters

Contains: Chinese character entries: Positions/batteries, units/formations in red and blue partly with Arabic and Roman numerals

Contains: Chinese character entries: Positions/batteries, units/formations in red and blue partly with Arabic and Roman numerals

Contains: Chinese character entries: Positions/batteries and units/formations in red and blue partly with Arabic and Roman numerals, artillery target directions and targets in blue

Contains: Chinese character entries: Positions/batteries, units/formations in red and blue partly with Arabic and Roman numerals

Contains: Chinese character entries: Positions/batteries, units/formations in red and blue partly with Arabic and Roman numerals

Contains: Chinese character entries: Positions/batteries and units/associations in red, green and blue partly with Arabic and Roman numerals

Contains: Chinese characters entries with map legend: positions in red, position lines in blue and green, units / associations in blue

Contains: Chinese character entries: positions in red; positions, units/associations etc. in blue partly with Arabic and Roman numerals

Contains: Chinese character entries: Positions/batteries and units/associations in red and blue partly with Arabic and Roman numerals

Contains: Chinese character entries: Positions, heavy batteries and units in red and blue, partly with Arabic and Roman numerals.

Contains: Chinese character entries: Positions/batteries (red and blue). Units/associations (in blue) partly with Arabic and Roman numerals

Contains: Chinese character entries: Positions/batteries, units/formations in red and blue partly with Arabic and Roman numerals

Contains: Chinese character entries: Positions/batteries, units/associations in red and blue partially with Arabic and Roman numerals additional sketchy map

Contains: Chinese character entries: Positions/batteries, units/associations in red and blue partly with Arabic and Roman numerals

Contains: Chinese character entries: positions in red; probably posts and lines in blue partly with Arabic and Roman numerals positions in green with Arabic and Roman numerals

Contains: Chinese character entries: Positions/batteries and units/formations in red and blue partly with Arabic and Roman numerals, artillery target directions and targets in blue

Contains: Chinese character entries: Positions/batteries and units/formations in red and blue partly with Arabic and Roman numerals, artillery target directions and targets in blue

Contains: Chinese characters, entries: Positions/batteries in red and blue partly with Arabic and Roman numerals, artillery targets and targets in green and blue

Contains: Chinese characters, entries: Positions/batteries and units/units in red and blue partly with Arabic and Roman numerals, artillery targets and targets in blue

Contains: Chinese character entries: Positions/batteries and units/units in red and blue partly with Arabic and Roman numerals, artillery targets and targets in blue

Contains: Chinese character entries: Positions/batteries and units/units in red and blue partly with Arabic and Roman numerals, artillery targets and targets in blue

Contains: Extent: about 116° - 123° East and about 35° - 39° North Shandong Peninsula - Gulf of Bohai Chinese characters, entries: Additional traffic dwarfs: overview map of the yellow sea, (South) Japan, Korea, (East China)

Contains: Chinese characters, no markings

Contains: Chinese characters, no markings

Contains: Chinese characters, no drawings Legend of roads, paths and other things