Turn and Bank Indicator, 4 Minute Turn, & Eyebrow Lamp Italian This is an authentic vintage

This is an authentic vintage Direct Reading Free Air Temperature Indicator Type C-13B

2-inch thick book includes 25 lessons covering all aspects of aviation instruments known in 1941

the drift angle is determined by reading the location of the pointer on the base's scale

The position of the wheels were indicated by the 3 small window insets

It works well for a device its age

Turn and Bank Indicator, 4 Minute Turn, & Eyebrow Lamp Italian This is an authentic vintageThis is a Vietnam War era Turn and Bank Indicator NSN 6610 00 169 1489 made by Midland Ross as used in the Bell AH 1S Huey Cobra Attack Helicopter and the Bell UH 1 Huey Helicopter, according to its parts manual dated 1982. Included is the Eyebrow lamp bezel. The electrical connector has broken from the rear case of the indicator. Measures 3. 25 inches diameter and 6 inches deep. Functionality of the eyebrow lamp is unknown.