Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1872
1872
1610; 1923
circa 1871
1834-1836
1830 (original); 1967 (model)
1875
1873
1871
1874
1839 (original); circa 1988 (replica)
1775-1799 (original); 1900-1907 (model)
1874
1990-96
1801-1840 (original); 1901 (model)
1872
1875
1934
1772 (original); 1919 (model)
1705-1737
1872
1874
1934
2000-100 BCE
4000-2001 BCE
1873
1955; 1830
1871
1893-4
1871
1875
1872 (original); 1909 (model)
1871
1875
1888
1938; (1838)
1872
1875
1930 (replica); 1834 (original)
1873
1872
1873
1873
1668; 1924
1642-1649 (original); 1883 (model)
1990-95
1925; 1862
1874
1936