
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1879
1903
1862
1918-1920
1919
1860
1877-1897
1900-1910
1905
1895-1904
1839 (original); circa 1988 (replica)
1923
1870
1897-1898
1885
1952-3
1860-1920
1917
1875
1880-1920
circa 1900
1872
1900-1910
1870
1880-1920
1860-1916
1874
1869
1853-1857
1900-1910
c.1912
1907
1900-1920
1879-1896
1907
1913
1846
1874
1880-1900
1858
1849
1889
1847-1848
1066; 1876
1903
1888
1878-1879
1872
1845-1855