Quote:
Originally Posted by winny
British Escape maps were originally printed on silk (that was deemed unfit for parachutes) as silk became rarer they later printed them on Rayon.
They used pectin mixed with the ink which stopped bleed.
They also printed some on tissue.
Here's an early bartholomew Map
Got most of the info from here
The actual pilot's map was usually printed on heat treated paper but this varied from country to country. |
A cursory search (I'm not an expert) throws up this item on auction.
http://www.ima-usa.com/product_info....oducts_id/2114
Includes some information on how they were made (sewn selvage hem) as well as some close-up images.
