Airspeed Indicator, 500 MPH Type D-7 B-47 has a service tag from

has a service tag from the WWII-era Rolls Royce Flight Test establishment situated at Hucknall Aerodrome

part number 4770

Stalin and his henchmen are the worst enemies of the people

These instruments are clearly 'experienced' but are in reasonable shape for their age

Airspeed Indicator, 500 MPH Type D-7 B-47 has a service tag fromThis Airspeed Indicator is a WWII era US Army Air Force Type D 7, Bendix Pioneer PN 1426 4T A10 1, as used across a number of US Army Air Corps and Air Force aircraft during WWII, including heavy bombers B 17 and B 24, medium bombers B 25 and B 26, as well as light bomber A 20, according to the Maintenance Interchangeability Chart dated Dec 1943. It was also used in versions of US Army Air Force WWII fighters P 38, P 39, P 40, P 47, and P 51. It is in