Nestler Polymath-Duplex pocket slide rule 0129 full set 1970 Germany

This pocket slide rule is close to new and comes with box, leather sleeve, manual and information slip and control slip, all made in Germany by Nestler. This model is the elaborate Polymath-Duplex, nr. 0129 with 24 scales on both sides. The Nestler name and model is on the rule itself, on the sleeve (just Nestler). It is made of plastic but has metal reinforcements on the ends as well as on the heavy duty cursor with multiple hairlines. Curser, slide rule and sleeve are complete and in very good condition with only small signs of storage. The Manual is German and actually for the Multimath-duplex model which could have been an error on Nestlers behalf, while the box is stamped Polymath but the number had to be changed by pen as well. It measures ca. 95 cm or 7 3/4 inches. Check the attached video on how to work your vintage man tool : slide rule operation instructions!