This interesting slide rule was developed specially for calculation on foils (it’s predecessor is the IWA 09118). For various thickness, in square meter, width, weight, size and weight when on rolls, etc. It was produced by IWA with number 09185 in 1973. It has an interesting design with 2 slides in the middle. The other interesting thing is that is advertises 2 different companies one of which is “alquist” which name is also on the blue sleeve. The blue sleeve contains the instructions on the back as well. The slide rule is in good condition with small signs of use only. It measures ca 18 cm or ca. 7 1/4 inches long. Check the attached video on how to work your vintage man tool: slide rule operation instructions!
IWA 09185 Rollenberechnung Folien Foils slide rule 1973 Germany
€40.00
IWA 09185 Rollenberechnung Folien Foils slide rule full set, made in 1973 in Germany
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1 in stock
Category: Slide rules
Tags: 1970's, Germany, Slide rule, Working order
Description
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