
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1903
1907
1879
1895-1904
1879-1896
circa 1861
1862
1898
1858
1877-1897
1885
1875
1884
1897-1898
1952-3
1872
1858
circa 1900
1905
1889
1884-1900
1830 (original); 1967 (model)
1869
1870
1907
1880-1900
1870-1888
1872
1895
1896
1900
1886
circa 1885
1901
1860
1895
1898-1908
About 1890
1887-1903
1856
1875-1890
1861
1861
1896
1906
1872-1880
1934
1902-1907
1896