Airspeed Indicator 320 MPH Mk IXD RAF F-86 The altitude is set by

The altitude is set by the left knob and is displayed in the right window

This 77-page manual describes the gun and its subassemblies

as used in  aircraft of the US Army Air Force and US Navy with tail wheel or nose wheel landing gear

This is an original unbound Erection and Maintenance Instruction manual for the US Navy's SBD Dauntless and US Army Air Force's A-24 Banshee Dive Bombers

The case is open

Airspeed Indicator 320 MPH Mk IXD RAF F-86 The altitude is set byThis is an excellent example of a WWII era Air Speed Indicator Mark IXD, as used in the British RAF Fairey Battle bomber and the Airspeed Oxford utility aircraft. This particular specimen has a serial number showing a year of manufacture of 1940. Air speed from 0 200 MPH is indicated by a clockwise rotating pointer, starting at the 6 o'clock position, along the outer perimeter scale. As the aircraft passes 200 MPH, air speed is indicated along the