Sunday, March 26, 2023 -- Old Torrance Antique Fair - Military 4-Egined Airplane Tachometers

Military airplane tachometer gauges.

For a 4-engined plane.

The LH gauge shows the Left Wing engines.

There's two needles indicating the engine speed for engines #1 & #2.

RH gauge for engines #3 & #4.

Found these for sale online.

The description indicated that these are from a WWII era B-24 bomber (or like plane).  Of course, I don't know if the description is accurate or not.

Similar functionality but different manufacturer.