Pressure Gauge, 5000PSI, PN AW-1 7/8-17CZ6, AN-5771 MIL-G-7734, US Navy
Here is an aircraft Pressure Gauge, 0-5000PSI, made by US Gauge. Measures 2.25in diameter and ~2in deep. The lettering has the alternating Munsell Green coloring often appearing in instruments of the US Navy. Note that the last one in our inventory is missing the glass, but is otherwise in nice condition.