
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1879
1870
1853-1857
1885
1862
1872
1860
1839 (original); circa 1988 (replica)
1884
1874
1705-1737
1830 (original); 1967 (model)
1872
1854
1860
1870-1880
1856
1861
1861
1879
1857-1870
1858
1850
circa 1860
circa 1885
1850
circa 1861
1858
1850-1870
1850-1870
1850-1870
1855-1860
1865
1857-1858
1857-1858
1858-03-02
1866
1870s
1857-1858
1865
1853
1865
1867-1868
1875
1853
1884
1852
1877
1955; 1830