GSGS series 4414. Sheet 4920, Second Edition (AEF). Copied from German Topographische Karte 1:25,000 Sheet 4920 dated 1936. Revised under the direction of the Chief Engineers, ETOUSA, by the 660th Engr. Topo. Bn., U.S. Army, Dec 1944. Lambert modified conical orthomorphic projection. Nord de Guerre Grid.