@en|Scanning of a December 1921 [[Sheaffer]] advertising for a series of different models of that time, highlighting an 89C ''[[Lifetime]]''. Published on ''The National Geographic Magazine''. Retouched by the author for a better sharpness. Dating provided by seller. | @en|Scanning of a December 1921 [[Sheaffer]] advertising for a series of different models of that time, highlighting an 89C ''[[Lifetime]]''. Published on ''The National Geographic Magazine''. Retouched by the author for a better sharpness. Dating provided by seller. |