28.D [Air Photo-Map Composite: Ypres Salient--Passchendaele] August 9, 1917 at 2:30 p.m.
Oblique angle photo looking east. Covers an area equivalent to portions of square D on the corresponding WWI map sheet 28. Series P21, photo number AE67. Annotations on recto: Gravenstafel, Delva farm, Passchendaele, Beecham, Keerselaarhoek halt, and Bostin farm printed in black with their map reference numbers and arrows pointing to their locations on the photo. Map reference numbers D.25.a.0.9., D.21.a.2.7., and D.25.d.0.9. printed in white with lines pointing to their locations. A monochrome section of map sheet 28 is included below the photo with a black polygon outline of the exact coverage of the oblique air photo. Reproduced and printed by No. 5 Advanced Section, Army Printing and Stationery Services. Location: Research Collections, Fonds: WWI Aerial Photograph Collection, Box , Envelope .