51b.W26 [Canal du Nord, Between Inchy-en-Artois and Sains-lez-Marquion] September 3, 1918
Covers area equivalent to squares W26 and 27 on corresponding WWI map sheet 51b and squares E1 and 2 on sheet 57c. Negative roll and photo number 13LB 3343. Annotations on recto: north arrow pointing to the left. "Sains," "Inchy-en-Artois," and "Canal du Nord" labelled in white. Map reference "27c.55.27." with an arrow pointing to a road intersection. WWI Aerial Photograph Collection: Box 4, Album photo 53.