Cleo Messograf

A Swiss army knife disguised as a pen. That is the Cleo Messograf. It is not only a writing instrument, but a caliper and ruler. In addition, the Messograf is equipped with a screw thread scale and can even be used as a tire gauge. Not to measure air pressure, but to determine tread depth. Only this multipurpose tool does not have a knife. It also does not hail from Switzerland, but Germany.