Aristo No. 814



Front without slide

Back of the slide


Length 15 cm
Number of scales 14
Country of origin  
Country of manufacturing Germany
Year of manufacturing  
Status of the slide rule Normal signs of use
Material of the slide rule Plastic
Type of cursor Clear plastic
Status of the box Normal signs of use
Status of the manual None
Collection number 228
Further comments Small electrical slide rule. I especially like the small lens in the left side of the slide. Most likely the pouch is not original, as it says "Zeiss Ikon", while the back of the slide rule says "Gebr. Ruhstrat - Göttingen". The Ruhstrat company still exists by the way.


 Last updated: 04-09-2009