
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1870
1870
1830 (original); 1967 (model)
circa 1861
1862
1865-1866
1860
1875
1869
1860
1861
1861
circa 1860
1865
1867-1868
1875
1955; 1830
1867
1867
1872
1867
1893-4
1934
1863-7
1875
circa 1861
2000-100 BCE
1861-1866
1864
1872 (original); 1909 (model)
1875
1862
1870
circa 1868
1867
1865
1866
1870s
1872
1865
1872
1873
1872
1867
1862-1863
1865
1860
1930 (replica); 1834 (original)
1839 (original); circa 1988 (replica)