
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1879
1770
1780-1850
1903
1801-1830
1862
1877-1897
1860
1900-1910
1905
1895-1904
1839 (original); circa 1988 (replica)
1870
1897-1898
1801-1900
1885
1952-3
1783-1800
1875
circa 1900
1872
1799-1802
1831
1777-1785
1801-1900
1900-1910
1870
1831
1874
1869
1900-1910
1907
1913
1846
1874
1858
1849
1760-1775
1889
1847-1848
circa 1842
1880-1900
1853-1857
1801-1900
c.1912
1907
1879-1896
1829
1801-1899