This is a dedicated Faber Castell slide rule (2nd version) from Germany in the original hard case. This model is the 111/66 Demegraph for the printing industry made to the design of Schirmer. It is made in Germany and date 1968. It has various unique scales and additions as well as a paper role logo on the left and a cut out on the right. The cursor has a specially added red stripe. On the back there is additional information on the sizes of fonts. Everything is in good condition and complete, the front has turned a little darker while the back is still very white (see last picture), there are only small signs of use and age. It measures 30 cm or 12 inches. The Demegraph instruction booklet can be found online (German) here.
Check the attached video on how to work your vintage man tool : slide rule operation instructions!
