Aberdeen Harbour Board: Photograph "Matthews Quay. East face. [?]" [?] "Sample from female pile cut from above hole in sheet piling approx. 11.5' above H.D. and 62' south of line of north face. Picture shows front of pile nearest the water. Note how comparatively smooth the surface is in marked contrast to the rear. As shown in no.1 and 2." Black and White photograph. Copyright/photographer information: Harbour Engineers Office 25/11/1957