An optical instrument consisting of a sighting tube and a quadrant scale plate, used to ascertain the angle of elevation of an object.
Classification: Levels (surveying)
NSN 5935-01-343-4586
NSN 5990-01-421-5342
NSN 6650-01-399-0628
NSN 6610-01-285-4673
NSN 6105-00-099-8818
NSN 6240-01-412-0715
NSN 5996-00-823-8487
NSN 6620-01-116-2632
NSN 5925-01-392-1112
NSN 6110-00-110-4265
NSN 5835-00-594-4921
NSN 5985-01-032-5020