Graphoplex 1614 log log slide rule NMIB 1970 France

This set contains a slide rule, manual, paper outer box and plastic container, by Graphoplex from France. This model is the 1614 student slide rule. On the box are the other products by Graphoplex like the Duplex, Radian – Log, Neperlog, Neperlog – Hyperbolic, Polyrietz, Tecnilog and Trigoflix. It has pictures of ref 690a and ref 640 on front and back. The number 1614 is on the rule which is in complete and in great condition. Small signs of use and age including a name scratch in the blank back. Manual is in Dutch. It measures ca. 29 cm or 11 1/2 inches. Do check the attached video on how to work your vintage man tool : slide rule operation instructions!