Libyan desert 1:100,000.
Great Britain.Army.Royal Engineers.Field Survey Co., 512th.
[Cairo : Survey Directorate, Middle East,
1941]
Reproduced by 512 (A. Fd. Svy.) Coy. R.E. from an Italian map dated 1933.
Archenu -- Cufra (El Cafra) -- Rebiana -- Zighen