This full set model is the very dedicated Electronic 1 with nr. 0297, made by Nestler from Germany. It has many interesting scales on both sides, which are addressed in the original booklet in German. It was aimed at the electro-engineer of its day. It also has a dedicated cursor with its own small scale. The Nestler name and model is on the rule itself and on the leather sleeve (just Nestler) and on the original out box (also numbered 0297) as well as on the plastic sheet with small metal tool. It is made of plastic with plastic reinforcements on the ends, the heavy duty cursor has metal sides. Curser, slide rule and sleeve are complete and in good condition with some signs of use and age. Small rubber feet are accounted for but are hardened and a little out of shape. It measures ca. 35 cm or 14 inches. Check the attached video on how to work your vintage man tool : slide rule operation instructions!
