
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1879
1877-1897
1839 (original); circa 1988 (replica)
1870
1885
1875
1872
1870
1874
1869
1874
1889
1879-1896
1066; 1876
1888
1878-1879
1872
1875-1890
1872-1880
1934
1896
1879
1870-1890
1886
1875
1877
1882
circa 1885
1888
1890
1890
1896
1895
1896
1870-1880
circa 1897
1879
1876
1878
1894
1890-1894
1892
1875
1892
1884
1870
1875
1884
1955; 1830