Graphoplex 695 Radian-Log slide rule sleeve 1970 France

This slide rule comes in the original leatherette sleeve (not numbered) and the insert, all made by Graphoplex from France. This model is the 695 Radian-Log Duplex model with some unusual scales, next to the more standard yet elaborate scales. It features not 1 but 2 P-scales as well as a scale for converting radians to degrees and vice versa, from which it also derives the name. The rule itself is made of plastic, as well as the cursor. Curser and slide rule are complete and everything is in very good, hardly used condition, with minimal signs of use and age. This slide rule measures ca. 33 cm or 13 inches. The complete French manual shows clear 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!