Title: The Escape Map printed on silk
Artist: Anonymous

Maps like this one,  printed on synthetic fabric, were issued to Allied air crew in the 1940s to help them evade capture if their place went down in occupied territory. Some copies were also smuggled into prisoner of war camps.

Croatia (W & central), Montenegro (west), Hungary (west) ? . London: Geographical Section, General Staff, 1943. (F) C1 (597) 43F