Telephones Introduced in SIB
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PrintA system of electric bells and telephones is established throughout the Smithsonian Institution Building, the Castle. The system connects several office and work rooms in the building to provide instant communication between the rooms so as not to loose the time required to go from one room to another.
Smithsonian Institution Building (Washington, D.C.)
Chronology of Smithsonian History
Institutional History Division, Smithsonian Institution Archives, 600 Maryland Avenue, S.W., Washington, D.C. 20024-2520, SIHistory@si.edu
June 12, 1878