Gun Train/Elevation Meter, Radar Fire Control, US Navy Ships Turret, CW-22AAD, WWII B-52 the differential pressure being indicated

the differential pressure being indicated by the gap between the two pointers along the index

The indicator is New Old Stock and in exceptional condition give its age

It's condition gives clues of its age

likely indicating manufacture date of 1957 for the US Air Force

Gun Train/Elevation Meter, Radar Fire Control, US Navy Ships Turret, CW-22AAD, WWII B-52 the differential pressure being indicatedHere is an interesting WWII US Naval gunship artifact: a Gun Train Elevation Meter. This indicator was positioned at the Turret Trainers Station within a gun turret of a battleship or a cruiser, signaling to the Turret Trainer if the 'laying', or aim, of the guns needed to be trained (turned) left or right, and if the barrels should be depressed or elevated. The meter received its signal from the radar controlled range keeper, and judging from the