
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1879
1903
1862
1860
1877-1897
1897-1898
1839 (original); circa 1988 (replica)
1905
1895-1904
1870
1885
1952-3
1875
1872
1831
circa 1900
1870
1880-1900
1831
1858
1874
1869
1849
1889
1853-1857
circa 1842
1847-1848
1879-1896
1846
1874
1829
1066; 1876
1903
1888
1878-1879
circa 1832
1872
1845-1855
1902
1832
1845
before 1889
before 1889
About 1890
1887-1903
1842
1856
1875-1890
1861