@en|Scanning of a May 1931 [[Sheaffer]] advertising for the [[Balance]] model ''[[Autograph]]'' version and different desk sets. Published on ''The National Geographic Magazine'', Vol. LX, No. 5. Retouched by the author for a better sharpness. | @en|Scanning of a May 1931 [[Sheaffer]] advertising for the [[Balance]] model ''[[Autograph]]'' version and different desk sets. Published on ''The National Geographic Magazine'', Vol. LX, No. 5. Retouched by the author for a better sharpness. |