
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1870
1870
1858
1830 (original); 1967 (model)
1846
circa 1861
1862
1865-1866
1860
1875
1858
1869
1849
1858
1853-1857
1847-1848
1854
1860
1856
1861
1861
1857-1870
1850
1848
1858
1850
circa 1860
1853
1865
1867-1868
1849
1846-1859
1875
1853
1852
1877
1955; 1830
1846
1867
1867
1872
1876
1878
1858
1855
1856
1867
1848-1852
1858