Modifiche

* [http://www.penhero.com/PenGallery/Sheaffer/SheafferVacuumFilGuide.htm] Articolo di Jim Mamoulides sul  ''[[Vacuum-Fil]]''.

* [http://www.penhero.com/PenGallery/Sheaffer/SheafferVacuumFilGuide.htm] Articolo di Jim Mamoulides sul  ''[[Vacuum-Fil]]''.

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===Note===

==Note==

<references/>

<references/>

{{BrandData|MainBrand=Sheaffer|ProdDate=1934|Country=US}}

{{BrandData|MainBrand=Sheaffer|ProdDate=1934|Country=US}}

{{CategorizeBrand|U.S.A.|Secondary brand}}

{{CategorizeBrand|U.S.A.|Secondary brand}}

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