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Details and Image
Type
Model No.
Maker
Country
Construction
Material
Date
Scale Length
Area of Use
Linear & Calculator
TR3
Faber-Castell
Germany
Plastic
12.5 cm
Engineering
Notes:
Combines a slide rule and an electronic calculator in same devide. A classic example of what seemed to make sense during the slide-rule hand-calculator transition.
Image 1
Image 2
