Great Britain. War Office. General Staff. Geographical Section. G.S.G.S. 4480. Alternate title: Langwaden. In upper left margin: Germany. Details taken from G.S.G.S. 4414, 1:25,000. Relief shown by contour lines ("Warning: contours are approximate"), and spot elevations. In lower right margin: Drawn by the War Office. Reproduced by the 942 Engr Avn Topo Bn, 325th Pwr, US Army.