1. Maps. The world, compiled and drawn under direction of chief of engineers; by Army Map Service (SN). Scale 1:11,000,000 (approximate); 1 in.=174 m. at equator. Bookmark Corporate/Agency Authors: Engineer Department and War Dept. Publisher: Engineer Department Date: 4th edition, except 1 and 7 which are 3d edition, 1948 SuDoc number: W 7.13:W 89/943/sh.1-9