1959 US Military Barfield aircraft torque wrench. The wrench comes in a heavy well protected case with a screw top and insulated interior. It is made by Morrill & Morrill, it reads from 0 to 80 inch ounces. The calibration tag dates it to 1959. I have no idea what this was used for nor what type of aircraft. The torque wrench measures 8.5 inches tall in the container it measures 9 inches. I have no idea how it works or if it is still accurate.