20.P31 [Huts Near Marbot Crossroads, Houthulst Forest] December 18, 1917
Covers an area equivalent to squares P31 and V1 on the corresponding WWI map sheet 20. Negative roll 9B, photo number 168. Annotations on recto: north arrow pointing to the left. Annotations on verso: 2 pencilled circles labelled: "MARBOT + Rds" and "HUTS V.1.a." WWI Aerial Photograph Collection: Box 1, Envelope 21.