
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1872
1872
1870
circa 1871
1775-1799 (original); 1900-1907 (model)
1871
1830 (original); 1967 (model)
1870
2000-100 BCE
circa 1868
1870s
1934
1866-1870
1867-1868
1955; 1830
1871
1867
1867
1867
1893-4
1872 (original); 1909 (model)
1870
1866
1872
1872
1867
1888
4000-2001 BCE
1934
1872
1839 (original); circa 1988 (replica)
1868
1772 (original); 1919 (model)
1870
1873
1801-1840 (original); 1901 (model)
1990-96
1866
1866-1870
1870
1870
1870-1877
1930 (replica); 1834 (original)
1705-1737
1873
1869
1873
1873
1642-1649 (original); 1883 (model)