BBC - Travel - An ingenious way to hide a map
BBC - Travel - An ingenious way to hide a map In World War II, clandestine maps were printed onto cloth handkerchiefs to be used by Allied servicemen in case of capture behind enemy lines.LINK
BBC - Travel - An ingenious way to hide a map In World War II, clandestine maps were printed onto cloth handkerchiefs to be used by Allied servicemen in case of capture behind enemy lines.LINK