Antique Mechanical Pencil Sharpener Gallery ~ 1900-1909 ~ Model, Year, Maker Click Image to Enlarge Challenge Pencil Sharpener Patented 1900 Cook & Grover Lynn, MA Duplex Pencil Sharpener Patented 1900 Charles Babcock, Troy, NY Collection of the National Museum of American History, Smithsonian Instit...