Preserving Warbird History...one artifact at a time.
This is a recent-era 2.5 inch, 4-Minute turn, Turn and Bank Indicator made by RC Allen.
The glass and case are intact, as is the glass inclinometer. Measures ~5 inches long.
A-6E Intruder TRAM and KA-6D Technical Manual Flight Control Systems 1991
Accelerometer, G-Meter, AN-5745, Hucknall Aerodrome, Rolls-Royce Flight Test
Accelerometer, G-Meter, AN-5745, Type B-3 WWII B-17, B-24, B-25
Accelerometer, G-Meter, AN-57455L3, F4U-5N Corsair