First Two-Way Long Distance Telephone Conversation
From this site on
October 9, 1876
the first two-way long distance
telephone conversation was carried
on for three hours. From here in
Cambridgeport Thomas G. Watson
spoke over a telegraph wire to
Alexander Graham Bell
at the office of the Walworth Mfg. CO.
69 Kilby Street, Boston Mass.
This plaque
presented to the City of Cambridge
by the
North Council
Thomas Sherwin Chapter
Telephone Pioneers of America
November 1, 1961