Faber Castell Duplex 2/82 slide rule full set 1970 Germany

Large multi scale slide rule on both sides that was made in Germany by A.W. Faber & Castell and is called the Duplex 2/82, the one before the 2/82N. This one comes with box as well as manual and sheets in Spanish. Both slide rule and slider are in great condition with hardly any signs of use or age, no darkening, little yellowing between the scales. The box is complete and in working condition, no cracks. It measures ca. 33 cm or 13 inches long to the 38 cm or 15 inches of the 2/83N. This great late edition rule is reinforced with metal pieces and the ends with rubber inserts (great condition). Check the attached video on how to work your vintage man tool : slide rule operation instructions!