Photo taken by the French Aeronautique Militaire. Annotations on recto: north arrow pointing to the upper-left. "AERO31ca. B.1952 = N.O. St. MARD LES TRIOT - 410/345c - 14-8-18 - 10H - F0.50. BR44." Annotations on verso: "French" written in pencil. WWI Aerial Photograph Collection: Box 4, Album Photo 75.