@en|Scanning of a December 1920 [[Sheaffer]] advertising for a pen/pencil [[overlay]] set (2R rolled gold, 3R solid gold). Published on ''The National Geographic Magazine'', Vol. ?, Nr. 6?. Retouched by the author for a better sharpness. Date on the back cover. | @en|Scanning of a December 1920 [[Sheaffer]] advertising for a pen/pencil [[overlay]] set (2R rolled gold, 3R solid gold). Published on ''The National Geographic Magazine'', Vol. ?, Nr. 6?. Retouched by the author for a better sharpness. Date on the back cover. |