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[[Dunn]] was founded in New York in [[1921]], but curiously ''Charles Dunn'', the inventor which gave its name to the company, was not between its owners because he died by tuberculosis just few days before the company foundation. It was him that in 1920 created and patented (Patent {{Cite patent|US|1359880}}) an original [[stantuffo tuffante|pump filling system]] similar to the one used by [[OMAS]], more than 10 years later, for the [[Lucens]]. The new filling system allowed to store a large ink capacity, so that one of the slogans adopted for the market launch the [[Camel Tatler]] model was: ''A regular camel for ink, goes a month without a drink''.

[[Dunn]] was founded in New York in [[1921]], but curiously ''Charles Dunn'', the inventor which gave its name to the company, was not between its owners because he died by tuberculosis just few days before the company foundation. It was him that in 1920 created and patented (Patent {{Cite patent|US|1359880}}) an original [[stantuffo tuffante|pump filling system]] similar to the one used by [[OMAS]], more than 10 years later, for the [[Lucens]]. The new filling system allowed to store a large ink capacity, so that one of the slogans adopted for the market launch the [[Camel Tatler]] model was: ''A regular camel for ink, goes a month without a drink''.

[[Image:1922-11-Dunn-Bakelite.jpg|thumb|left|Pubblicità del 1922, con lo slogan ''A regular camel for ink, goes a month without a drink'']]

[[Image:1922-11-Dunn-Bakelite.jpg|thumb|left|Advertising of 1922, with the slogan ''A regular camel for ink, goes a month without a drink'']]

Le stilografiche [[Dunn]] erano tutte realizzate con questo particolare sistema di caricamento, che ne caratterizzava anche lo stile; il fondello della penna infatti, da usare come manopola per poter effettuare il caricamento della stessa utilizzando il sistema a pompa, era realizzato in plastica rossa (inizialmente in [[ebanite]], poi sostituita dalla [[caseina]], materiale più deperibile e di minor qualità), tanto da costituire un tratto distintivo della penna che in un altro slogan veniva descritta come ''The fountain pen with the red pump handle''.

Le stilografiche [[Dunn]] erano tutte realizzate con questo particolare sistema di caricamento, che ne caratterizzava anche lo stile; il fondello della penna infatti, da usare come manopola per poter effettuare il caricamento della stessa utilizzando il sistema a pompa, era realizzato in plastica rossa (inizialmente in [[ebanite]], poi sostituita dalla [[caseina]], materiale più deperibile e di minor qualità), tanto da costituire un tratto distintivo della penna che in un altro slogan veniva descritta come ''The fountain pen with the red pump handle''.