Pressure Gauge, 2000PSI, PN 12882-A, AN5771-4, similar to use in B-17, B-24 Pre-WW2

Pressure Gauge, 2000PSI, PN 12882-A, AN5771-4, similar to use in B-17, B-24 Pre-WW2Here is an aircraft Pressure Gauge, 0 2000PSI, made by Electric Auto Lite. Measures 2. 25in diameter and ~2in deep. According to the Maintenance Interchangeability gude dated Feb 1945, the AN5771 4 Pressure Gauge was used across many multi engine aircraft of the US Army Air Forces, including bombers B 17 Flying Fortress, B 24 Liberator, B 29 Superfortress, B 25 Mitchell, B 26 Marauder, and A 20 Havoc. It closely resembles the model used in these

to align the line of firing with the line of the gunsight

See photo of the Coronado's engineers panel showing the location of this instrument from the Flight Manual dated 1942

as used in early aircraft of the US Army Air Corps

The gunner took aim at his target by looking through the glass screen mounted on an optic head the bottom of the sight

The glass and face markings are intact

It is in good condition given its age

It consists of a small 'telescope' viewing vertically towards the ground

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Our research indicates that it may have been made for the Canadian-designed/manufactured Cold-War-era interceptor aircraft

indicating vertical speed from 0-6000 ft/min

This is a fine example of an early WWII-era German Wendezeiger (Turn and Bank) Fl 22402

and a service label dated 1966