Turn and Slip Indicator, Mk IA, 6A/675, RAF 1944 Allison

Turn and Slip Indicator, Mk IA, 6A/675, RAF 1944 AllisonHere 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

and remained

Here is a WWII-era or post-war era Bomb Bay Fuel Quantity indicator

It has an inspection label from Naval Air Station San Diego (NAS SD) dated March 1953

The Gyro Flux Gate Compass System was used in aircraft of the US Army Air Force such as heavy bombers B-17

They squeezed the last juices out of the people

According to AircraftCockpits

It is in good condition given its age

25in diameter and ~3in deep

the lid having lost its way over the years

You are carrying a heavy burden in the name of liberating our name

the indicator displayed the pressure being applied to the rubber surface de-icer boots along the leading edges of the wings and empennage to dislodge ice which has formed

and torpedo bomber TBM Avenger (see illustration from the TBM Erection and Maintenance Manual dated 1944)