Graphoplex 698 Electronicien slide rule full set 1970 France

This slide rule comes as a complete set with the leatherette sleeve (also numbered 698), manual and card, all made by Graphoplex from France. This model is the 698 Electronicien (electronica) Duplex model with 19 scales of which a log x – decibels scale as well as Mhz. The rule itself is made of plastic, as well as the cursor. Curser and slide rule are complete and everything is in good, hardly used condition, with minimal signs of use and age (only minimal bleeding in a few spots). This slide rule measures ca. 33 cm or 13 inches. The complete French manual shows signs of age but is complete and readable. Do check the attached video on how to work your vintage man tool : slide rule operation instructions!