Archive of Collections



Details and Image



TypeModel No.MakerCountryConstruction
Material
DateScale LengthArea of Use
Linear & Calculator
Faber-Castell TR3
Faber-CastellGermany
Plastic
12.5 cmEngineering

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