
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1879
1853-1857
1879-1896
1846
circa 1861
1862
1898
1850
1858
1877-1897
1885
1875
1884
1897-1898
1872
1858
1849
circa 1900
1889
1884-1900
1847-1848
1830 (original); 1967 (model)
1869
1870
1880-1900
1870-1888
1872
1895
1896
1854
1900
1886
circa 1885
1860
1895
1850-1870
1845
About 1890
1856
1875-1890
1861
1861
1896
1872-1880
1934
1850-1897
1896
1879
1870-1890