
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1872
1870
1872
1830 (original); 1967 (model)
1866
1801-1840 (original); 1901 (model)
circa 1868
circa 1871
1869
1775-1799 (original); 1900-1907 (model)
1668; 1924
1871
circa 1868
1870s
1610; 1923
1870s
1870
circa 1868
1867
1867
1893-4
1866
1867-1868
1866-1870
1955; 1830
1642-1649 (original); 1883 (model)
1871
1867
2000-100 BCE
1872 (original); 1909 (model)
1870s
1934
1870
1870
1772 (original); 1919 (model)
1930 (replica); 1834 (original)
1872
1839 (original); circa 1988 (replica)
1888
1872
1868
1870
1990-96
1867
1871
1705-1737
1870-1877
1872
1870