
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1870
1879
1870
1846
1858
1830 (original); 1967 (model)
1885
1875
1865-1866
circa 1861
1862
1858
1860
1880
1869
1845-1855
1858
1853-1857
1849
1847-1848
1853
1865
1849
1846-1859
1854
1875
1884
1877
1860
1846
1884
1870-1880
1847
1845-1855
1845
1867
1867
1856
1861
1861
1876
1878
1858
1872-1880
1893-4
1851
1934
1879
1880