Interesting slide chart by IWA model 10175, made in Germany. It is a generic converter for German units to English or American units, spanning volume, power, energy, heat, speed and sizes. It was an earlier design by Mr. Rötscher for the AWF and this is the last IWA incarnation from the 1970’s. It is in very good condition so there are only small signs of use or age from normal use, fully functioning with all parts intact and complete with the German manual. It measures ca. 25 cm or ca. 10 inches wide. Check the attached video on how to work your vintage man tool : slide rule operation instructions!
IWA 10175 SR 704 Einheiten Rechner units converter slide chart 1970 Germany
€25.00
IWA 10175 SR 704 Einheiten Rechner units converter slide chart, made in the 1970’s in Germany
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