|Note_en=Advertising for the [[Duofold]] ''Deluxe'' in [[celluloid]] (called [[Permanite]]) and the other models. Promoving the ''[[Advertised Feature::Pressureless Touch]]'' feature (writing without pressing). | |Note_en=Advertising for the [[Duofold]] ''Deluxe'' in [[celluloid]] (called [[Permanite]]) and the other models. Promoving the ''[[Advertised Feature::Pressureless Touch]]'' feature (writing without pressing). |