|Note_en={{Dating|back}} Advertising for the [[Duofold]] models, with the new ''Deluxe'' version with three rings, and the [[Quink]] ink mentioning its features of quick drying and cleaning capacity. | |Note_en={{Dating|back}} Advertising for the [[Duofold]] models, with the new ''Deluxe'' version with three rings, and the [[Quink]] ink mentioning its features of quick drying and cleaning capacity. |