20.V1 [Turenne Crossing, Houthulst Forest West of Schaap-Balie] December 26, 1917
Covers an area equivalent to squares U6, V1 and 7 on the corresponding WWI map sheet 20. Negative roll 9B, photo 217. Annotations on recto: north arrow pointing to the upper-right. "Turenne Crossing" printed in white with an arrow pointing to its location. WWI Aerial Photograph Collection: Box 1, Envelope 78.