Pressure Gauge, Dual Engine, Japanese G4M Betty Bomber Beaufort When gently pulled down

When gently pulled down

This altimeter is similar in appearance to that shown in the F4U Corsair Flight Manual dated 1944

but the pages appear to be intact

and case are intact

As the engine speed increased

Pressure Gauge, Dual Engine, Japanese G4M Betty Bomber Beaufort When gently pulled downThis is a WWII era Dual Engine Pressure Gauge as used in the Japanese Bomber Mitsubishi G4M Betty. The gauge displays pressure for both engines simultaneously, from 0 50 (PSI or bar, unknown). The G4M Betty was the main land based bomber operated by the Japanese Navy Air Service during WWII. It was a G4M in which the architect of the attacks on Pearl Harbor and Midway Island, Admiral Yamamoto, was shot down by US Army Air Force P 38s over the South