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

and remained

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

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

25in diameter and ~3in deep

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