Oblique angle photo. Covers the area equivalent to squares V23 to W30 on the corresponding WWI map sheet 57d. Annotations on recto: North arrow, "ALBERT," "The Maze," and a map reference point "57d.V.23c.9.6" labelled in white. Negative roll and photo number: 35 AE O 109. WWI Aerial Photograph Collection: Box 2, Envelope Misc. 01.