Vertical and oblique aerial photographic prints taken over the Western Front during the First World War by Nos. 4, 10, 20, 21, 42, 53 and 57 Sqaudrons of the Royal Flying Corps and Royal Air Force. Areas covered:
Verticals: Map sheets 28 (squares E, F, J, K, L), 36 (squares H, M, N); 36A (squares D, K, L, P, Q, R). All dated 1917 - 1918.
Also and Australian oblique aerial photograph of central Ypres taken from a kite balloon and three pairs of 'Before and After' aerial photographs taken by No. 42 Squadron (RAF) showing the results of counter battery fire by 329th Siege Batrtery (RGA) in May and June 1918. In all cases details of the barrage are given along with observation comments by a named officer.
Black and white photographic prints, a small number with ink stamps and handwritten annotations on the reverse. Also six prints mounted in pairs on paper with handwritten annotations in red ink and typescript notes.