|Note_it=Pubblicizza un modello [[Advertised Model::Duofold]] in [[RHR|ebanite rossa]].
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|Note_it=Pubblicizza uno dei primi modelli [[Advertised Model::Duofold]] in [[RHR|ebanite rossa]] senza verette sul cappuccio, menziona il controcappuccio a tenuta ''[[Advertised Feature::Safety Seal]]''.
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|Note_en=Advertising for a [[Duofold]] model in [[RHR|red hard rubber]].
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|Note_en=Advertising for an early [[Duofold]] model in [[RHR|red hard rubber]] without cap band, mention the inner cap ''[[Safety Seal]]'' system to prevent ink leaks.