
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1903
1907
1879
1853-1857
1895-1904
1879-1896
1862
1898
1875
1850
circa 1861
1858
1877-1897
1885
1952-3
1858
1869
circa 1900
1884
1905
1889
1897-1898
1884-1900
1830 (original); 1967 (model)
1872
1870
1907
1870-1888
1880-1900
1872
1895
1896
1870-1880
1853
1865
1867-1868
1854
1875
1853
1884
1901
1852
1877
1860
1900
1955; 1830
1886
1890 - 1900
1858