Turn and Slip Indicator, Mk IA, 6A/675, RAF 1939 Core Viscount this indicator was used in

this indicator was used in the twin-engine Bristol Beaufighter

but it is either non-functional or requires the correct electrical input to function

A flash tube

the remote control gun turret system

This indicator is in exceptional condition for its age

Turn and Slip Indicator, Mk IA, 6A/675, RAF 1939 Core Viscount this indicator was used inHere is a Turn and Slip Indicator, Mark IA, Type 6A 675, invented by George Reid (according to the 'all knowing' Wikipedia) and made by Reid & Sigrist, as used on the blind flying panel of aircraft of the British Royal Air Force and the Royal Australian Air Force of WWII. It is an early version as evidenced by the all white markings; later versions had both white and green markings on the face. While the Mark IA was used across numerous British