Plastic
An instrument consisting of a jointed arm with one end fastened to a rectangular shaped board and the other end free to move over the surface of the board. Attached to the free end of the arm is either a triangle, a protractor head and triangle, or a protractor head and l-square.
Classification: Drafting tables and machines, whether or not automatic
NSN 6130-01-457-8748
NSN 6105-01-155-9347
NSN 5945-00-368-9734
NSN 5985-01-122-0771
NSN 6150-01-359-4161
NSN 5915-01-490-0244
NSN 5920-01-481-7931
NSN 5960-01-017-5449
NSN 6620-01-390-1121
NSN 6620-00-010-8190
NSN 6610-00-810-8326
NSN 6220-00-730-0366