The Pilot's Corsair, Part IV, A Manual for Operating the F4U-1, F3A, & FG C-130 it could easily fit in

it could easily fit in the pocket of a mariner for determining position at sea or for determining horizontal positions on land

Army Type C-7

The instrument indicated to the pilot the aircraft's external air temperature from -60dC to +50dC in aircraft of the Air Force US Army

according to the US Army Air Force's Interchangeability Cross Reference Chart dated Feb 1945

000 Meters along the small inner scale

The Pilot's Corsair, Part IV, A Manual for Operating the F4U-1, F3A, & FG C-130 it could easily fit inThis is an original 18 page typewritten, 8. 5x11" pamphlet prepared by the USNAAS Green Cove Springs Florida for training pilots on the USN Fighter Corsair, dated May 1945. It is Part IV in a series and includes Section 11. Survival Equipment and Section 12. Armor and Armament.