Re: Dietzgen Rules

Karl Kleine

Hello Rod,

I have 3 Dietzgen catalogues: #9 of 1910/1911 (reprint), #13 of 1928, and #22D of 1953.
Unfortunately, none of these contain demo or projection slide rules.
Dietzgen's target was the professional office, not educational institutions, at least in these catalogues.

best regards, Karl

Prof. Karl Kleine - c/o Ernst-Abbe-Hochschule Jena, Germany -

Von: <> im Auftrag von Rod Lovett <>
Gesendet: Freitag, 12. Februar 2021 13:45
Betreff: [sliderule] Dietzgen Rules

Hi All,

Does anyone have any details, good images, references etc., of Classroom Demonstration Rules and/or Overhead Projection Rules and/or Slide Projection Rules made by Dietzgen?



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