|Note_it=Pubblicizza le varie versioni del modello [[Advertised Model::Duofold]]. Cita il [[Advertised Feature::Pressureless Touch]] e la [[celluloide]] chiamata [[Advertised Feature::Permanite]]. {{RightPage|File:1929-09-Parker-Duofold-Left.jpg}} | |Note_it=Pubblicizza le varie versioni del modello [[Advertised Model::Duofold]]. Cita il [[Advertised Feature::Pressureless Touch]] e la [[celluloide]] chiamata [[Advertised Feature::Permanite]]. {{RightPage|File:1929-09-Parker-Duofold-Left.jpg}} |