Telephone Invention - First Drawing by Alexander Bell

This is a facsimile, maintained at the Library of Congress, of the first drawing Alexander Graham Bell made of a telephone.  Click on the image to more clearly read the notes he later added.

Credits

Undated sketch with A.G. Bell's handwritten text added in 1876. 

Box 273, "Subject File: The Telephone--Drawing of the Telephone, Bell's Original."

Alexander Graham Bell Family Papers, Manuscript Division, Library of Congress.