US Army Air Force Fighter Gunnery, 1st Edition, Training Manual, June 1944 C-7 made by Manning

made by Manning

25in across and ~5in deep

although the bulb is missing from this example

(iii) The specification of 1° per hour random error when in the directional gyro mode

It is in good condition given its age

US Army Air Force Fighter Gunnery, 1st Edition, Training Manual, June 1944 C-7 made by ManningThis is an original Fighter Gunnery Training Manual as used in aerial fighter combat training of pilots of the US Army Air Force during WWII. Its 115 pages cover all that is necessary to know by fighter pilots for air to air combat. It is in good condition for its age. The pages are intact. The cover has become detached from its lower staple, but it is otherwise reasonable condition. Measures 8. 5 x 11 in and about 1 2 in thick.