Alexander Graham Bell, about to call San Francisco from New York in the first transcontinental telephone call. Signed signed by Alexander Graham Bell beneath the photo.

"Left to Right: U.N. Bethell, Senior Vice-President Amercian Telephone & Telegraph Co., presiding; Hon. George McAneny, President Board of Alderman, New York City; John J. Carty, Chief Engineer, American Telephone & Telegraph Co.; Alexander Graham Bell, John Purroy Mitchel, Mayor of New York; C.E. Yost, President of Nebraska Telephone Co., Omaha; Hon. William A. Prendergast, Comptroller of the City of New York

"In front of Dr. Bell is the replica of his original telephone. In front of Mr. Bethell is the glass case containing a piece of the wire over which Dr. Bell and Mr. Watson carried on the first telephone conversation in the world."