Royal Air Force Field Service Pocket Book 1924

Published by His Majesty's Stationery Office, 1925, although the facsimile signature of WF Nicholson for the Air Ministry is dated December 1924. This is a practical / survival booklet for shot down / stranded pilots, and contains fold out charts such as "Characteristics Used on British Ordnance Survey Maps", and navigational aids such as "Curves of Equal Magnetic Variation, 1922" for instance. There are also several sketch plans for re-rigging canvas of various aircraft of the time, two of which appear in the photos above. There is a holder for a pen / pencil which was probably issued with this booklet, but this is missing. There is also an empty pocket to the rear, which probably contained some document in the past, but this is no longer present. There is now an original loose photograph of an aircraft, with the caption "The machines that flew us to the camp' in that folder. The spine is beginning to show netting on the title page, and other pages have small nicks and tears. There is an RAF Halton (?) stamp on the board opposite. The fold out covers of the book are in reasonable condition, if a bit worn in places.