51b.U22 [Bullecourt, Hindenburg Line] April 6, 1917
Covers an area equivalent to square U22 on the corresponding WWI map sheet 51b. Negative roll 15 AE photo number 1415. Annotations on recto: north arrow pointing to the left with an "x" on the opposite side of photo. Annotations on verso: "BULLECOURT, GERMAN LINE EAST OF BULLECOURT, HINDENBURG LINE" and "BULLECOURT N.E." printed in pencil. WWI Aerial Photograph Collection: Box 2, Envelope 51.