
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1872
1870
1872
1867-1868
1875
1877
1870
1870-1875
circa 1868
circa 1871
1875
1867
1867
1955; 1830
1871
1893-4
1870-1877
1875
1876
1867
1934
2000-100 BCE
1876
1870s
1872 (original); 1909 (model)
1875
1872
1870-1875
1870
1870-1875
1868
1772 (original); 1919 (model)
1873
1870
1990-96
1801-1840 (original); 1901 (model)
1830 (original); 1967 (model)
1876
1877
1867
1839 (original); circa 1988 (replica)
1874
1775-1799 (original); 1900-1907 (model)
1871
1870
1872
4000-2001 BCE
1874
1869