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<noinclude>{{Infobox_Brand|Blackbird}}</noinclude> [[Image:1927-Swan-Models.jpg|thumb|100px|A [[Swan]] advertisement for ''[[Merle Blanc]]'' brand]] The [[Blackbird]] brand was introduced by [[Swan]] around the end of the 20s to distinguish its economic production. The pens, as well as by name, were identified, as the the main brand versions, by the stylized logo of the bird from which they get the name (i.e. the blackbird).
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{{Infobox_Brand|Blackbird}}</noinclude> [[Image:1927-Swan-Models.jpg|thumb|100px|A [[Swan]] advertisement for ''[[Merle Blanc]]'' brand]] The [[Blackbird]] brand was introduced by [[Swan]] around the end of the 20s to distinguish its economic production. The pens, as well as by name, were identified, as the the main brand versions, by the stylized logo of the bird from which they get the name (i.e. the blackbird).
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Generally [[Blackbird]]s follow the models used by the main brand, of which they share the colour numbering and part of the [[Numerazione Swan|numbering scheme]], but are distinguished by the prefix BB, and at least initially, by the use of only the unit number corresponding to the nib. These pens are generally produced with the simplest of the available filling systems (mostly [[lever filler]]), although in parallel to the model [[Visofil Pen|Visofil]] was also introduced a model, the [[Blackbird Topfiller]], with a similar filling system (see patent {{Cite patent|GB|514513}}).
Generally [[Blackbird]]s follow the models used by the main brand, of which they share the colour numbering and part of the [[Numerazione Swan|numbering scheme]], but are distinguished by the prefix BB, and at least initially, by the use of only the unit number corresponding to the nib. These pens are generally produced with the simplest of the available filling systems (mostly [[lever filler]]), although in parallel to the model [[Visofil Pen|Visofil]] was also introduced a model, the [[Blackbird Topfiller]], with a similar filling system (see patent {{Cite patent|GB|514513}}).