
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1905
1770
1701-1800
1919
1870
1879
1920-1925
1917
1870
1903
1952-3
1858
1791
1895-1904
1901-1930
1907
1775
1830 (original); 1967 (model)
1915-1925
1846
1801-1900
1885
1780-1850
1880-1920
1890-1910
1815-1825
circa 1861
1862
1771-1830
1895-1905
1901-1910
1865-1866
1801-1838
1860
1920
circa 1897
1898
1902
1875
1880-1920
1901-1913
1918-1920
1898
1899
1858
1795-1805
1901-1930
1877-1897
1889