A telescope whose line of vision is 180 degrees from the eye.
Classification: Military equipments not identified by kind
NSN 6220-00-443-6522
NSN 6105-01-250-2384
NSN 6220-00-012-0027
NSN 5910-01-067-2940
NSN 6320-01-578-6006
NSN 5910-01-494-6993
NSN 5905-00-448-2088
NSN 5960-01-547-6699
NSN 5960-00-466-2258
NSN 5945-01-422-9969
NSN 5925-01-430-5306
NSN 6135-00-889-1485