Aerial photograph of Thiacourt, France, August 25, 1918. A circle is drawn around a point of interest.Inscription: "U.S. 1A 91Sq B1393 N.W. of Thiaucourt 63.1-42.1: 25/8/18 16h 4800m 52cm. Point d'ascension du Drachen de Thiaucourt, EM 2422"
Aerial photograph of Dun-sur-Meuse, France, October 10, 1918. Craters from artillery shells are visible.Inscription: "U.S. 1A 91sq. B2255 W. of Dun-Sur Meuse 314.2-290.4: 10/10/18 10h 5300m 52cm."
Aerial photograph of Nouart, France, October 30, 1918. The top half of the image is overexposed.Inscription: "U.S. 1A 91Sq. B2589 E. of Nouart 306.7-297.2: 30/10/18 15h 4800m 52cm - north."
Aerial photograph of Rémonville, France, October 30, 1918. Craters from artillery shells are visible.Inscription: "U.S. 1A 91Sq B2476: Remonville 304.8-291.4: 30/10/18: 11H 4500m 52cm."
Aerial photograph of La Baronnelle, France, November 3, 1918.Inscription: "U.S. 1A 91Sq. B2706 : La Baronnelle FME: 288.0-308.5: 3/11/18: 13H 3500m 52cm."
Aerial photograph of Noirval, France, November 3, 1918. Craters from artillery shells are visible.Inscription: "U.S.1A 91Sq. B2735: S.W. Noirval: 286.5-298.8: 3/11/18 10H 2800m 52cm."