
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1879
1853-1857
1846
circa 1861
1862
1850
1858
1875
1872
1858
1849
1847-1848
1830 (original); 1967 (model)
1869
1870
1872
1842
1854
1837
1837
1842
1860
1850-1870
1845
1856
1861
1861
1872-1880
1934
1879
1840
1857-1870
1835
1837
1840
circa 1868
1845
1850
1845
1848
1858
1875
1850
circa 1860
1865
1867-1868
1849
1846-1859
1875