Aircraft Gun Sight Type N-6 KC-97 suspended within an original metal

suspended within an original metal Carrying Case

the display rotates to display "UP"

but judging from the lack on information on it

in addition to the flight manual's instructions for its use

but the pages inside appear intact

Aircraft Gun Sight Type N-6 KC-97 suspended within an original metalThis is an original authentic illuminated WW2 era Gun Sight Type N 6 as used in flexible gun mounts turrets of bomber and patrol aircraft of the US Army Air Force and US Navy, such as the B 17, B 24, B 25, and B 26. This particular sight is oriented for a side mount to a machine gun. It can be reconfigured by removing the screws to the sight head and reorient it. The sunshade flips up and down as it should. The lamp compartment opens revealing an