Part of Burroughs calculator hand crank

If the hand crank of your Burroughs Calculator is missing, you can't get the adding machine to operate. By metal printing (aluminium) this part that easily fits a wrench (M13), you can build yourself an alternative crank. This part was reverse engineered with the help of Burroughs expert Wim Hasselo during the Flemish heritage project "Duiken in de Machine". The casestudy was originally submitted by Steven Lots (collector). Source: Objaverse 1.0 / Sketchfab