
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1905
1919
1870
1879
1917
1903
1952-3
1895-1904
1846
1858
1791
1870
1907
1830 (original); 1967 (model)
1801-1900
1885
1880-1920
1890-1910
circa 1861
1862
1901-1913
1898
1899
1858
circa 1897
1898
1902
1875
1901-1910
1865-1866
1895-1905
1801-1838
1860
1920
1880-1920
1918-1920
1815-1825
1795-1805
1877-1897
1889
1801-1920
1880
1845-1855
1801-1900
1869
1822
1858
1853-1857
c.1912