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

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| description = Battle of Mughar Ridge- Situation at 18:00 on 11 November 1917 as known at GHQ EEF

| source = Author: Powles, C. Guy

Source: The New Zealanders in Sinai and Palestine Volume III Official History New Zealand's Effort in the Great War

Date: 1922

Publisher: Whitcombe & Tombs Ltd, Auckland

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)".

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