@en|Scanning of an February 2, 19267 [[Parker]] advertising for the new [[Duofold]], promoting unbreackable barrel in [[celluloid]] (named ''[[permanite]]''). Published on ''The Saturday Evening Post''. Retouched by the author for a better sharpness. Date on the back side. | @en|Scanning of an February 2, 19267 [[Parker]] advertising for the new [[Duofold]], promoting unbreackable barrel in [[celluloid]] (named ''[[permanite]]''). Published on ''The Saturday Evening Post''. Retouched by the author for a better sharpness. Date on the back side. |