
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1879
1853-1857
1846
1879-1896
1875
1858
1877-1897
circa 1861
1862
1885
1898
1850
1858
1869
1889
1884
1897-1898
1847-1848
1830 (original); 1967 (model)
1849
1870
1872
1870-1888
1872
1895
1896
1842
1854
1886
circa 1861
1847
1867
1867
1885-1894
1872
1859
1842
1879
1876
1878
1858
1894
1865-1866
1848-1852
1858
1870-1881
1899
1851
1890-1894