Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1872
1910
1872
1853-1857
1610; 1923
1847-1848
1915-1925
1902-1917
1889
1849
1899-1919
1909-1910
1860
1935
1893
1842
1870-1920
1925-1930
1889
1884-1900
1840-1851
1860-1896
1901-1930
1895-1905
1874-1902
1870
1840
1920
1873-1920
1926-1932
1886-1927
circa 1920
1862
1898
1840
1858
1901-1920
1880-1930
1897
1895-1905
1921-1930
1866-1870
1901-1930
1886
c.1912
1850-1900
1866-1870
1857
1801-1840 (original); 1901 (model)