In 1985 I had my presicion mechanic final exam. For the practical part a journeyman's piece had to be custom built. I could choose what I wanted to built and as I had an old compass at home, which I found on a flea market, the choise was made.
I reengineered/recreated the compass. Drew the technical drawings, all with ink. Got the drawings approved with some exam relevant stipulated measurements and then manufactured the compass.