20.O24 [Mons Crossroads and Petite Michu Junction, Houthulst Forest] December 18, 1917
Covers an area equivalent to portions of squares O24, and 30 on the corresponding WWI map sheet 20. Negative roll 9B, photo 184. Annotations on recto: north arrow pointing to the left. Annotations on verso: pencilled circle labelled, "Petite Michu Junction." Placement of annotation corresponds to its exact location on recto. WWI Aerial Photograph Collection: Box 1, Envelope 43.