
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1872
1870
1872
1865
1867-1868
1870
1866-1870
circa 1868
circa 1871
1865
1867
1867
1955; 1830
1871
1865-1866
1865
1893-4
1866
1934
2000-100 BCE
1870s
1872 (original); 1909 (model)
1867
1872
1865
1870
1868
1772 (original); 1919 (model)
1873
1870
1990-96
1865
1801-1840 (original); 1901 (model)
1830 (original); 1967 (model)
1867
1866
1839 (original); circa 1988 (replica)
1869
1930 (replica); 1834 (original)
1873
1872
1705-1737
1888
1934
1865-1866
1870-1877
1873
1870
1872