
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1879
1862
1860
1839 (original); circa 1988 (replica)
1870
1885
1875
1872
1870
1874
1869
1853-1857
1846
1874
circa 1842
1858
1849
1889
1847-1848
1066; 1876
1888
1878-1879
1872
1845-1855
1845
1842
1856
1875-1890
1861
1861
1872-1880
1893-4
1934
1879
1840
1870-1890
1861-1866
1857-1870
1886
1837
1848
1858
1875
1850
circa 1860
1877
1886
1882
1840