* "Liste der Herstellungsdaten gangbarer Schreibmaschinen" by Office Machines and Equipmentįederation, London, copies contributed by Mr. * Darryl Rehr, Antique typewriters, by Schroeder publishing, Verlag and Basten International, 1920 to 1949 and reprints Typewriter and the history of it's developement), publ. SchraderĮrnst Martin, Die Schreibmaschine und ihre Entwicklungsgeschichte(The #18)Īllowance Sheet 1918, made available by Andrew B. (note: The source for this article was at least partially Ref. * Joan Sales,"Date your Underwood Typewriter" - Website : However, for the purposes of validation we have been able to confirm the source.
Usually it means we have a copy of the document in question, but it might be in the form of a later edition list.
Indicates source data the current list maintainer has access to. Model 3 was called Model "Vasanta" as wellġ933 follows the "Olympia Plurotyp", developed Were still sold for the export, with the brandname "AEG")
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