Oil Temperature Indicator, Dual Engine, Type A-24 US Army Air Corps WWII Dinah Reconaissance This is an original 3-box-set

This is an original 3-box-set collection of pages for Recognition Manuals published by the US Navy's Office of Naval Intelligence in 1942-43

Measures 12 in x 6

This is a 1950's-era Attitude Gyro Horizon Indicator as used in the US Navy/Marine Corps Fighter Jet Grumman F9F-5 Cougar and the HUP-1

and the Turn and Bank Indicator

Researching the internet reveals that Type ASD X-band airborne search radar used this indicator as a B-scope (range vs bearing) in US Navy patrol aircraft to detect ships and surfaced submarines

Oil Temperature Indicator, Dual Engine, Type A-24 US Army Air Corps WWII Dinah Reconaissance This is an original 3-box-setThe Army Type A 24 Dual Engine Oil Temperature Indicator was used across a number of US Army Air Corps and Air Force aircraft during WWII, including heavy bombers B 17, B 24, B 29, medium bombers B 25 and B 26, as well as light bomber A 20, according to the Accessories Interchangeability Chart dated Feb 1945. This A 24 was made by Sutton Horsley, part number 2213 7, and has a serial number prefix of AF42, indicative of a 1942 manufacturing date. This