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[[Image:Kosca-Arco-Posted.jpg|thumb|A [[Kosca]] in celluloid]]

[[Image:Kosca-Arco-Posted.jpg|thumb|A [[Kosca]] in celluloid]]

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. Much later, requested in 1938, is the  [[Record]] ({{Marchio|59025}}) trademark, that was also renewed after the war.

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. Much later, requested in 1938, is the  [[Record]] ({{Marchio|59025}}) trademark, that was also renewed after the war.

But there is also a German company in Pforzheim in Germany, called ''Kohler & Schaefer'' which holds several patents related to fountain pens and other writing instruments, for which it is not known any relationship with the Milanese company (if the parent or other). But the possibility that these were two completely independent companies with the same name composed of two identical surnames (''Kohler & Schaefer'' also appears in the records of Italian brands) is considered very unlikely.

But there is also a German company in Pforzheim in Germany, called ''Kohler & Schaefer'' which holds several patents related to fountain pens and other writing instruments, for which it is not known any relationship with the Milanese company (if the parent or other). But the possibility that these were two completely independent companies with the same name composed of two identical surnames (''Kohler & Schaefer'' also appears in the records of Italian brands) is considered very unlikely.

As for the [[Uhlmann's Eterno]] initial production was mainly of hard rubber pens [[overlay]]s, which are considered among the best ever. It is believed that the company have produced them also on behalf of the most famous companies like [[Columbus]], [[Omega]] and [[Ercolessi]], and also for the Italian branch of the [[Waterman]]. At least this last relationship is well established, existing many examples of such pens.  

As for the [[Uhlmann's Eterno]] initial production was mainly of hard rubber pens [[overlay]]s, which are considered among the best ever. It is believed that the company have produced them also on behalf of the most famous companies like [[Columbus]], [[Omega]] and [[Ercolessi]], and also for the Italian branch of the [[Waterman]]. At least this last relationship is well established, existing many examples of such pens.

The production of the second half of the '30s was in [[celluloid]], in three sizes with a faceted clip embossed with  ''Kosca'' imprint and decorated with a patterned band between two thin rings.

The production of the second half of the '30s was in [[celluloid]], in three sizes with a faceted clip embossed with  ''Kosca'' imprint and decorated with a patterned band between two thin rings.

===External references===

===External references===

* http://fountainpenboard.com/forum/index.php?/topic/736-koska/

* http://fountainpenboard.com/forum/index.php?/topic/736-koska/

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<references/>

{{BrandData|Founder=Paul Kohler, Christian Schaefer|Place=Milano|Date=1920|Country=IT|Trademarks=Record,Spezial}}

{{BrandData|Founder=Paul Kohler, Christian Schaefer|Place=Milano|Date=1920|Country=IT|Trademarks=Record,Spezial}}

{{CategorizeBrand|Italia|Secondary brand}}</noinclude>

{{CategorizeBrand|Italia|Secondary brand}}</noinclude>