A telescope whose line of vision is 180 degrees from the eye.
Classification: Military equipments not identified by kind
NSN 6130-01-527-6159
NSN 6645-01-276-5433
NSN 5998-01-154-2569
NSN 6240-01-337-7174
NSN 5975-01-293-1584
NSN 6145-01-634-0388
NSN 6645-00-313-2324
NSN 5985-01-604-8115
NSN 6130-01-241-9509
NSN 6110-00-293-6816
NSN 5835-00-269-2232
NSN 6110-00-492-9392