|Note_en=Advertising for a [[Duofold]] model. List five nib sizes: ''Extra-Fine'', ''Fine'', ''Medium'', ''Broad'', ''Stub'' or ''Oblique''. Mention the black and red color combination as registered trademark. | |Note_en=Advertising for a [[Duofold]] model. List five nib sizes: ''Extra-Fine'', ''Fine'', ''Medium'', ''Broad'', ''Stub'' or ''Oblique''. Mention the black and red color combination as registered trademark. |