
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1879
1853-1857
1829
1846
1829
circa 1861
1862
1850
1831
1858
1885
1875
1884
1872
1858
1849
1889
1847-1848
1830 (original); 1967 (model)
1869
1870
1870-1888
1872
1895
1842
1854
1837
1837
1886
1842
circa 1885
1860
1895
1850-1870
1845
About 1890
1856
1875-1890
1861
1861
1872-1880
1934
1830
1879
1840
1870-1890
1857-1870
1831-1870
1835