Landing Gear Pressure Indicator Type E-3 2000 PSI Air Corps US Army C-7 but requires the correct electrical

but requires the correct electrical input to function properly

type B-9C (formerly AN5772-2) and made by US Gauge

containing a small lamp (still present) in the upper right corner

it was connected to a rotating mechanical control cable

invented by George Reid (according to the 'all-knowing' Wikipedia) and made by Reid & Sigrist

Landing Gear Pressure Indicator Type E-3 2000 PSI Air Corps US Army C-7 but requires the correct electricalThis is an authentic WW2 vintage Landing Gear Pressure Indicator, Type E 3, made by Manning Maxwell & Moore, as used in early aircraft of the US Army Air Corps. "AC US ARMY" is embossed on the face of the instrument (black on black), see close up photo. This was a lighted instrument, containing a small lamp (still present) in the upper right corner, which would illuminate the inner rim of the dial when the knob is rotated. The instrument would