This pocket slide rule is unused condition and comes with it’s original leather sleeve, still in the original plastic wrapper. It is made in Germany by Nestler and this model is the elaborate Multimath-Duplex, nr. 0130 with scales on both sides. The Nestler name and model is on the rule itself, on the sleeve just Nestler. It is made of plastic with reinforcements on the ends, the heavy duty cursor with multiple hairlines has metal ends. Curser, slide rule and sleeve are complete and in very good condition with only small signs of normal use. It measures ca. 19,5 cm or 7 3/4 inches. Check the attached video on how to work your vintage man tool : slide rule operation instructions!