
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1903
1907
1879
1895-1904
1879-1896
1875
1858
1877-1897
1890-1910
circa 1861
1862
1885
1898
1858
1869
1905
1889
1884
1900-1910
1897-1898
1900-1910
1884-1900
1830 (original); 1967 (model)
circa 1900
1870
1907
1952-3
1872
1880-1900
1870-1888
1872
1895
1896
1910
1900
1886
1861 - 1900
circa 1861
1902
1906
1867
1867
1885-1894
1895-1905
1872
1859
1879
1876
1878