File talk:Powles pp.128-9 sit.11.11.17.jpg

The Powels publication is not the source of the map. A prior source is the "A Brief Record of the Advance of The Egyptian Expeditionary Force", produced by the Government Press and Survey of Egypt, Cairo 1919. I have a copy.

As an official (British) government publication, I don't believe it is copyrighted.

The 1919 map does not have a copyright notice, it says "Printed by the Survey of Egypt, Dec 1918 (0453)".

Jony (talk) 12:17, 18 April 2014 (UTC)
 * British government publications are copyrighted for 50 years from publication. As 1919 was more than 50 years ago, this is in the public domain. --Stefan2 (talk) 13:33, 16 May 2014 (UTC)