Both maps show battle lines as of Sept. 23rd, 1918.; Maps show railways, canals, forests, aircraft depots, wireless stations, forts, fortified towns, and naval arsenals, etc.; Issued with an index.; Relief shown by hachures. 68 x 91 centimeters and 66 x 76 centimeters on sheet 71 x 97 centimeters Scale 1:633,600 General Map Collection