
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1903
1907
1879
1895-1904
1879-1896
1875
1877-1897
1890-1910
1885
1898
1952-3
1905
1889
1872
1884
1900-1910
1897-1898
1900-1910
1884-1900
1830 (original); 1967 (model)
1870
1907
circa 1900
1870-1888
1880-1900
1872
1895
1896
1910
1900
1886
1902
1906
1885-1894
1895-1905
1872
1890
1888
1879
1876
1878
1894-1904
1894
1894-1904
1894-1904
1895-1910
1895-1900
1894-1904
1894-1904