@en|Scanning of a 1928 [[Sheaffer]] advertising for a pencil. Published on ''The National Geographic Magazine'', Vol. LV, No. 2. Retouched by the author for a better sharpness. | @en|Scanning of a 1928 [[Sheaffer]] advertising for a pencil. Published on ''The National Geographic Magazine'', Vol. LV, No. 2. Retouched by the author for a better sharpness. |