Modifiche

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Riferimenti:

Riferimenti:

[http://www.thesouthernscribe.com/pen-articles/the-famous-bock-nib-works.html], [http://www.fountainpennetwork.com/forum/index.php?/topic/20363-nib-history], [http://history.evonik.com/sites/geschichte/en/chemicals/Pages/default.aspx]

[http://www.thesouthernscribe.com/pen-articles/the-famous-bock-nib-works.html], [http://www.fountainpennetwork.com/forum/index.php?/topic/20363-nib-history], [https://history.evonik.com/sites/geschichte/en/Pages/default.aspx]

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{{BrandData|Date=1873|Place=Frankfurth|ProdDate=1932|Country=DE|Fullname=Deutsche Gold und Silber Scheideanstalt}}

{{BrandData|Date=1873|Place=Frankfurth|ProdDate=1932|Country=DE|Fullname=Deutsche Gold und Silber Scheideanstalt}}