ID: 
2563
Maker's Name: 
A.W. Faber-Castell, Stei bei Nuernberg
Where made: 
Germany
c. 1970
Dimensions: 
30.5 × 4.7 × 2.3 cm

A popular engineering slide rule from one of the best-known makers.

'Darmstadt' refers to the technical college where the particular arrangement of scales was devised. It includes, on the back of the slide, so-called log-log scales used to raise any number to any power. It has a plastic carrying case.