Nestler polymath-Duplex slide rule 0291 container 1970 Germany

This slide rule is in very good condition and comes with the original container has the control slip and is still in plastic. Everything made in Germany by Nestler. This model is the elaborate polymath-Duplex, nr. 0291 (number is not on the rule), with 22 scales on both sides. The Nestler name and model name are on the rule itself and on the sleeve (just Nestler). It is made of plastic with plastic reinforcements on the ends as well as a plastic cursor with multiple hairlines. Curser, slide rule and sleeve are complete and in very good condition with hardly any signs of use and age. The small rubber feet are accounted for and in great condition as well. It measures ca. 35 cm or 14 inches. Check the attached video on how to work your vintage man tool : slide rule operation instructions!