@en|Scanning of a April 20, 1935 [[Vacuum-Fil]] ([[Sheaffer]] sub-brand) advertising a pen with the new filling system. Published on ''The Saturday Evening Post''. Retouched by the author for a better sharpness. Date published on the back. | @en|Scanning of a April 20, 1935 [[Vacuum-Fil]] ([[Sheaffer]] sub-brand) advertising a pen with the new filling system. Published on ''The Saturday Evening Post''. Retouched by the author for a better sharpness. Date published on the back. |