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The company was founded by the activities of two German entrepreneurs, ''Kohler'' and ''Schaefer'' <ref>in the patent {{Cite patent|GB|302015}} registration (identical to {{Cite patent|CH|130454}}) by ''Kohler & Schaefer'', there are the names of ''Paul Kohler'' and ''Christian Schaefer'' which we assume to be the company founders. </ref> and the first letters of their names were used for the company name. Without a known foundation date the production style give a rough indication of the mid-20s. It's known instead the company's headquarters, Via Perugia in Milan, and the first trademark registration on their behalf in 1929 ({{Marchio|40298}}), with a logo of their initials. In the same time they registered also [[Spezial]] ({{Marchio|40301}}) and [[Spezial Super]] ({{Marchio|40299}}) trademarks.
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The company was created from the activities of two German entrepreneurs, ''Paul Kohler'' and ''Christian Schaefer'', in Pforzheim, in Germany around 1920,<ref>the majority of the data relating to this company comes from direct correspondence with the grandniece of ''Christian Schaefer'', which allowed us to correct the errors and inaccuracies previously present on the page; some dates, such as that of the foundation or the closure of the original German company are still indicative; the names of the two founders are also in the patent {{Cite patent|GB|302015}} (identical to {{Cite patent|CH|130454}}) registered in the name of ''Kohler & Schaefer''.</ref> and from the initial letters of their names was born that of the company. The company was initially dedicated to the production of multi lead mechanical pencils, in gold and silver, capable of changing four colours.
Versione attuale delle 23:38, 9 apr 2019
The company was created from the activities of two German entrepreneurs, Paul Kohler and Christian Schaefer, in Pforzheim, in Germany around 1920,[1] and from the initial letters of their names was born that of the company. The company was initially dedicated to the production of multi lead mechanical pencils, in gold and silver, capable of changing four colours.
↑the majority of the data relating to this company comes from direct correspondence with the grandniece of Christian Schaefer, which allowed us to correct the errors and inaccuracies previously present on the page; some dates, such as that of the foundation or the closure of the original German company are still indicative; the names of the two founders are also in the patent nº GB-302015 (identical to nº CH-130454) registered in the name of Kohler & Schaefer.