Though the quality of the sound recordings is poor, we know what Alexander Graham Bell was saying because he left transcripts. (Smithsonian's National Museum of American History)Though the quality of the sound recordings is poor, we know what Alexander Graham Bell was saying because he left transcripts. (Smithsonian's National Museum of American History)
Though the quality of the sound recordings is poor, we know what Alexander Graham Bell was saying because he left transcripts. (Smithsonian's National Museum of American History)