@en|Scanning of a November 1916 [[Parker]] advertising, illustrating the [[button filler]] merits and showing a tranparente barrel [[bakelite]] pen. Published on ''The National Geographic''. Retouched by the author for a better sharpness. Dating provided by seller. | @en|Scanning of a November 1916 [[Parker]] advertising, illustrating the [[button filler]] merits and showing a tranparente barrel [[bakelite]] pen. Published on ''The National Geographic''. Retouched by the author for a better sharpness. Dating provided by seller. |