Tobruch defences (12 Jan. 1941) /
[Cairo] : Reproduced by 512 [A. Fd. Svy.] Co. R.E.,
[1941]
"D.R. 58".
"This sheet is gridded with "Purple" grid based on Long. 27 [degrees] E. The grid is printed in black to give greater accuracy for artillery purposes".
Reproduced by 512 (A. Fd. Svy) Coy. R.E. from an Italian map dated 1936.
Rev. from air photographs dated 1939.
With a southward paste-on extension to the map, complete with lower border and marginalia.