Compass, Aperiodic, US Army Air Force Type D-12 BT-13 Here is a WWII-era electrical

Here is a WWII-era electrical Temperature Indicator used in aircraft of the German Luftwaffe

but remains in decent condition

The instrument looks terrific and would make a wonderful display piece

faux-leather over cardboard

The Special Devices Section grew and became the Special Devices Division

Compass, Aperiodic, US Army Air Force Type D-12 BT-13 Here is a WWII-era electricalThe US Army Air Force Type D 12 Direct Reading Aperiodic Compass was used at the navigators station across many US WWII aircraft, including heavy bombers B 17, B 24, B 29, medium bombers B 25 and B 26, and transports C 46, C 47, and C 54. Made by Bendix, part number 1833 1 A, it has a serial number prefix of AF 42, indicative of a manufacturing year 1942. Later versions had a bakelite cover surrounding the 'legs'. The navigators' direct reading