List of conventional signs and abbreviations in use on French and German maps
A 1918 military reference sheet issued by the American Expeditionary Forces General Staff and printed at the Engineer School's Central Map Reproduction Plant in Washington, listing the conventional signs and abbreviations found on French and German maps. Pages pair labelled specimen symbols with small engraved map fragments: trench and loophole diagrams, geodetic point markers, hatched embankments, village blocks, contour and road conventions.
