A telescope whose line of vision is 180 degrees from the eye.
Classification: Military equipments not identified by kind
NSN 5910-01-082-9069
NSN 6150-01-186-8601
NSN 5895-00-284-4835
NSN 6610-00-613-7960
NSN 5835-01-511-5337
NSN 5945-01-579-6583
NSN 6320-00-809-5744
NSN 2925-01-458-5808
NSN 5930-01-273-5338
NSN 5835-01-355-0308
NSN 5998-01-017-0936
NSN 7035-01-398-9581