A telescope whose line of vision is 180 degrees from the eye.
Classification: Military equipments not identified by kind
NSN 6220-01-577-9918
NSN 5999-01-513-5530
NSN 6645-00-763-4852
NSN 6145-00-275-4046
NSN 5855-01-464-5084
NSN 5990-01-431-3725
NSN 4140-01-361-8175
NSN 5895-00-090-1502
NSN 6645-00-333-6244
NSN 2925-00-932-6262
NSN 5925-00-054-0616
NSN 5985-01-190-9699