GSGS series 4414. Sheet 6428, First Edition (AEF). Copied from German Topographische Karte 1:25,000 Sheet 6428 and revised under the direction of the Chief Engineers, ETOUSA, by the 660th Engr. Base Topo. Bn., U.S. Army, 1945. Lambert modified conical orthomorphic projection. Nord de Guerre Grid.