Modifiche

|Datazione=copyright

|Datazione=copyright

|Note_it=Pubblicata anche sul ''The National Geographic Magazine''.  Pubblicizza una [[Advertised Model::Snorkel Pen]], versione ''[[Advertised Feature::Sheaffer Valiant|Valiant]]''. Illustra il relativo [[Advertised Feature::Snorkel filler|caricamento]].

|Note_it=Pubblicata anche sul ''The National Geographic Magazine''.  Pubblicizza una [[Advertised Model::Snorkel Pen]], versione ''[[Advertised Feature::Sheaffer Valiant|Valiant]]''. Illustra il relativo [[Advertised Feature::Snorkel filler|caricamento]].

|Note_en={{Dating|copyright}} Published also on ''The National Geographic Magazine''. Advertising for a [[Snorkel Pen]], but still reporting [[Advertised Model::Sheaffer TM]] on the box;''[[Sheaffer Valiant|Valiant]]'' version. Explaining its filling system.

|Note_en=Published also on ''The National Geographic Magazine''. Advertising for a [[Snorkel Pen]], but still reporting [[Advertised Model::Sheaffer TM]] on the box;''[[Sheaffer Valiant|Valiant]]'' version. Explaining its filling system.

}}

}}

==Licenza==

==Licenza==