
Strowger automatic telephone, 1901-1910
1901-1910
1901-1910
1905
circa 1910
1903
1903
1907
1909-1910
after 1903
1911
1839 (original); circa 1988 (replica)
1907
1909
1904
1901
1910
1905
1910
1910
1906
1934
1902-1907
1910
1904
1908
1909
circa 1905
1902
1906
1903
1903
1904
1907
2000-100 BCE
1901-1911
1901-1911
1955; 1830
1901
1902
1872 (original); 1909 (model)
1901
1906
1901
1902
1902; 1913-1920
1901
1901
1901
1910
1901
1910