Navigators Information File, WWII George Fighter Here is a fine example

Here is a fine example of a WWII-era CDIA Aircraft Clock

Light Cruisers Brooklyn and Oakland

with one rotation from 0 to 100

there is a small cover installed over a separate selector switch designed to engage a formation stick

See spec sheet in photos

Navigators Information File, WWII George Fighter Here is a fine exampleThis is an original WWII era Navigators Information File published in 1944 (updated 1945) 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 watermarks. It is in very good condition given its age.