I Found a Strange Metal Object in an Old Workshop—Its Real Purpose Surprised Me

At first glance, the object appeared complicated. Made entirely of metal and built with remarkable durability, it looked as though it belonged to a machine or some specialized piece of industrial equipment. The more I examined it, the more questions I had. What was it used for? Why had it been kept all these years? Was it part of a larger device, or did it serve a purpose on its own?