
Replica of Bell's 1876 centennial telephone transmitter, 1959
1959
1959
1876
1915
1906
1903-1926
1878
1877-1902
1880
1989
1890-1920
1925-1935
1925-1935
1910-1925
1925-1935
1925-1935
1925-1935
Feb1939
1945-1955
1936
1870-1890
1900
1880
1885-1890
1880-1900
1910
1915-1925
1880-1890
1925-1935
1925-1935
2005
1945-1955
1915-1925
1925-1935