Covers an area equivalent to squares P26, 32 and 33 on the corresponding WWI map sheet 20. Negative roll 9B, photo 192. Annotations on recto: north arrow pointing to the upper-right. Annotations on verso: pencilled circle labelled "Loop N of SCHAAP BALIE." Placement of annotation corresponds to itsr exact locations on recto. WWI Aerial Photograph Collection: Box 1, Envelope 49.