Xconomy

From The Telephone Gambit: Did Bell Steal His Legendary Invention? (Part Two):

Alexander Graham Bell's notebook
Alexander Graham Bell’s notebook

The page from Alexander Graham Bell’s notebook, dated March 9, 1876. Bell had just returned from visiting the U.S. Patent Office in Washington, D.C., and would, the very next day, record his success with the world’s first telephone conversation. (Click image to enlarge further.)

    

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