GCGS series 4414. Sheet 4517, Second Edition (AEF). Copied from German Topograpische Karte 1:25,000 Sheet 4517 dated 1930. Revised by 660th Engrs. U.S. Army Dec 1944, from aerial photographs flown by 7th Photo Group. Air Corps. U.S. Army May Oct 1944. Photo revision & drafting by 2775th Engrs. Copied by 2772nd Engrs. Lambert modified conical orthomorphic projection. Nord de Guerre Grid.