Graphoplex 692b Neperlog pocket slide rule pouch 1970 France

This pocket slide rule comes in the original numbered leather pouch, both made by Graphoplex from France. This model is the 692b Neperlog log-log. It has scales on both sides and 2 grey spacers on one sides as well. The rule itself is made of plastic, as well as the cursor which has several long and short hairlines on both sides. Curser and slide rule are complete and everything is in good condition but most of the ink has run out. The marks and numbers are still clearly readable but it may distract from doing calculation so the price is adjusted for this. The inside of the pouch is coming loose. It measures 18 cm or 7 1/4 inches long. Do check the attached video on how to work your vintage man tool : slide rule operation instructions!