|Note_en=Advertising for the different versions of the [[Duofold]] model. Citing [[Advertised Feature::Pressureless Touch]] and the [[celluloid]] called [[Permanite]]. Right page. | |Note_en=Advertising for the different versions of the [[Duofold]] model. Citing [[Advertised Feature::Pressureless Touch]] and the [[celluloid]] called [[Permanite]]. Right page. |