
Strowger automatic telephone, 1901-1910
1901-1910
1901-1910
1905
1934
1897
1935
circa 1910
1903
1918
1903
1935
1918-1920
1919
1920-1930
1909-1910
1897-1898
circa 1919
1901-1930
1907
after 1903
circa 1897
1901-1930
1915-1918
1899-1919
1914-1918
1921-1930
1911
1897
circa 1900
1920-1925
1901-1930
1839 (original); circa 1988 (replica)
1775-1799 (original); 1900-1907 (model)
1913
1915-1925
1907
1925-1935
1915-1918
1909
1926
1904
1910
1901
1914-1920
circa 1900
1920-1929
1934
1910
1900
1899
1905