
Strowger automatic telephone, 1901-1910
1901-1910
1901-1910
1905
1934
1897
1935
circa 1910
1903
1918
1903
1935
About 1890
1918-1920
1919
1920-1930
1909-1910
1897-1898
1895-1904
circa 1919
1901-1930
1907
after 1903
1895
circa 1897
1901-1930
1915-1918
1890
1914-1918
1890-1935
1921-1930
1911
1897
1920-1925
1901-1930
1899-1919
circa 1900
1839 (original); circa 1988 (replica)
1775-1799 (original); 1900-1907 (model)
1925-1935
1915-1918
1907
1913
1915-1925
1893
1909
1926
1904
1901
1914-1920
circa 1900
1920-1929