A telescope whose line of vision is 180 degrees from the eye.
Classification: Military equipments not identified by kind
NSN 6220-01-360-0850
NSN 5905-01-361-9076
NSN 6685-00-431-9608
NSN 6105-00-069-2759
NSN 6240-01-473-7989
NSN 6610-00-822-0431
NSN 6240-00-892-6175
NSN 6135-01-417-6539
NSN 5975-00-821-6666
NSN 5915-01-157-0977
NSN 6240-01-020-9910
NSN 5960-01-083-9224