
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1905
1770
1919
1870
1920-1925
1917
1879
1952-3
1775
1870
1895-1904
1903
1846
1858
1791
1907
1830 (original); 1967 (model)
1915-1925
1801-1900
1885
1862
circa 1897
1902
1875
1895-1905
1901-1910
1865-1866
1780-1850
1880-1920
1801-1920
1880-1920
1890-1910
1918-1920
1898
1815-1825
1899
circa 1861
1858
1771-1830
1795-1805
1898
1801-1838
1860
1920
1877-1897
1889
1901-1913
1880
1869