
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1870
1879
1870
1858
1830 (original); 1967 (model)
1885
circa 1861
1862
1865-1866
1860
1875
1858
1880
1869
1858
1860
1870-1880
1856
1861
1861
1879
1857-1870
circa 1885
1858
circa 1860
1884
1865
1867-1868
1875
1884
1877
1955; 1830
1867
1867
1872
1879
1876
1878
1858
1872-1880
1856
1867
1858
1870-1881
1893-4
1934
1863-7
1870-1877
1880