A section of a U.S. Army Air Forces silk escape-and-evasion map from World War II, depicting Hokkaido, Japan, southern Karafuto (Sakhalin), and the Siberian coast near Khabarovsk. Printed on durable, water-resistant silk or rayon, maps like this were issued to bomber crews such as those of the 345th Bombardment Group flying from Ie Shima, giving downed airmen a compact, tear- and water-resistant navigational aid for escape and survival behind enemy lines. Project: 218277