20.P25 [Massena Cross Roads, Houthulst Forest] January 3, 1918
Covers an area equivalent to portions of squares P25, 26, 31, and 32 on the corresponding WWI map sheet 20. Negative roll 9B, photo 329. Annotations on recto: north arrow pointing to the right. "Massena Cross Roads" labelled in white. WWI Aerial Photograph Collection: Box 1, Envelope 108.