10-Inch Ferro-Concrete [Stahlbeton] 940 Aristo slide rule from the 1973 catalogue, with instruction leaflet.
Details
- Category:
- Mathematics
- Object Number:
- 1995-134
- Measurements:
-
length 380 mm
width 80 mm
thickness 15 mm
- type:
- slide rule
- credit:
- Mr Hans Dennert