
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1879
1903
1901-1930
1862
1919
1877-1897
1920-1925
1860
1918-1920
1900-1910
1905
1895-1904
1839 (original); circa 1988 (replica)
1870
1897-1898
1923
1885
1952-3
1917
1875
circa 1900
1872
1860-1920
1880-1920
1900-1910
1870
1880-1925
1880-1920
1860-1916
1874
1869
1900-1910
1907
1913
1846
1874
1858
1849
1889
1847-1848
1915-1925
circa 1842
1880-1900
1853-1857
1851-1930
1900-1920
1890-1930
c.1912
1907