Navigators Information File, Sept 1944 WWII Grumman The serial # is 1538/58

The serial # is 1538/58

It measures 2in diameter by 3 in deep

The cloth-covered paper cover is loose from its binding and is worn

If the speed is off

We have observed the dual ignition switch with a push/pull master switch in manuals of early versions of the C-47 Skytrain transport

Navigators Information File, Sept 1944 WWII Grumman The serial # is 1538/58This is an original WWII era Navigators Information File published in 1944 (updated Sept 1944) by the US Army Air Force. It is the basic reference book for aircraft navigators in the performance of their duties. See photos. The page numbers are by section, so total pages are not estimated here. It is about 1 2 inch thick. All pages are intact as is the soft cover, which has some wearmarks. It is in very good condition given its age.