20.P25 [Massena Crossroads and Tresize House, Houthulst Forest] December 6, 1917
Covers an area equivalent to portions of squares P19, 25, 26, and 32 on the corresponding WWI map sheet 20. Massena Crossroads and Thann Crossroads are visible in the photo at left. Tresize Copse and Tresize House are visible near the centre. Negative roll 9B, photo 81. Annotations on recto: north arrow pointing to the upper-left with an "x" on the opposite side of the photo. WWI Aerial Photograph Collection: Box 1, Envelope 116.