Silk Escape Map, Helsinki/Trondheim

"Trondheim on one side, displays Norway and Sweden. Helsinki on the other, displays Finland and Western Russia. Originally issued to UK pilots during the Cold War. If they were shot down, these 100% silk topographical and political maps of Eastern European regions show the most convenient escape routes, including railroads, rivers, mines, swamps and more. Screened onto double-sided silk so that they could be used when wet and would not become illegible. Published by War Office 1945. This is the Third Edition which was revised and reproduced by O.S. in 1952. Measurement: Height is 29 in., Width is 42 in. Wonderful collectors items. New."""