@en|Scanning of a 1916 [[Waterman]] advertising for a PSF (''Pocket Self Filler'') [[lever filler]] model. Published on ''L'Illustration''. Retouched by the author for a better sharpness. Dating provided by seller. | @en|Scanning of a 1916 [[Waterman]] advertising for a PSF (''Pocket Self Filler'') [[lever filler]] model. Published on ''L'Illustration''. Retouched by the author for a better sharpness. Dating provided by seller. |