
Strowger automatic telephone, 1901-1910
1901-1910
1901-1910
1905
circa 1910
1903
1918
1903
1919
1909-1910
circa 1919
1907
after 1903
1915-1918
1914-1918
1911
1839 (original); circa 1988 (replica)
1913
1915-1918
1907
1909
1904
1901
1910
1905
1914
1915-1917
1901
1915
1910
1917
1910
1915
1906
1915
1934
1902-1907
1913
1914-1918
1910
1904
1908
1909
circa 1905
1912
1914-1918
1904-1914
1914-1918
1955; 1830
1914
1914-1918
1918