Photo taken at 2,000 metres by the French Aeronautique Militaire. Annotations on the recto: north arrow pointing to the upper-right. "AERO 31CA. B1948 = N.O. St. MARD LES TRIOT = 406/337 = 14-8-18 - 10H = Al.2000m - F.50. Br44." Annotations on the verso: "French" written in pencil. WWI Aerial Photograph Collection: Box 4, Album Photo 74.