US Army Air Force Fighter Gunnery, 1st Edition, Training Manual, June 1944 A-35 Vengeance We believe it to be

We believe it to be a pre-WWII model for civil aircraft

and functions as it should

and do not see any formal labels on the device that would indicate that it was a tool sanctioned for use by US military aviators

part number 671K-05

and therefore cannot claim its accuracy

US Army Air Force Fighter Gunnery, 1st Edition, Training Manual, June 1944 A-35 Vengeance We believe it to beThis 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 staples, but it is otherwise reasonable condition. Measures 8. 5 x 11 in and about 1 2 in thick.