
Strowger automatic telephone, 1901-1910
1901-1910
1901-1910
1905
circa 1910
1903
1918
1903
1909-1910
1907
after 1903
1914-1918
1911
1915-1918
1907
1913
1839 (original); circa 1988 (replica)
1915-1918
1909
1904
1901
1910
1905
1914
1915
1910
1917
1910
1915
1906
1915
1934
1902-1907
1913
1914-1918
1910
1904
1908
1909
circa 1905
1912
1904-1914
1901
1906
1917
1901
1902
1907-1917
1907-1917
1907-1917
1902; 1913-1920
1901