|Note_en=Scanning of a June 1917 [[Waterman]] advertising for a [[safety]] model. Published on ''The National Geographic''. Retouched by the author for a better sharpness. Dating provided by seller. | |Note_en=Scanning of a June 1917 [[Waterman]] advertising for a [[safety]] model. Published on ''The National Geographic''. Retouched by the author for a better sharpness. Dating provided by seller. |