
Difference Engine No. 1
circa 1832
circa 1832
1835
1835
1834
1832
1834
1834
1831
1955; 1830
1893-4
1830
1934
2000-100 BCE
1833
1831
1863-7
1832
1772 (original); 1919 (model)
1990-96
1830
1830-1835
1830
1831
1830 (original); 1967 (model)
1775-1799 (original); 1900-1907 (model)
1832
4000-2001 BCE
1833
1835
1830
1930 (replica); 1834 (original)
1705-1737
1835
1870-1877
1832
1807 - 1904
1889-02
1831
1835
1831
1833
1834
1774; 1923
1830
1642-1649 (original); 1883 (model)
2000-100 BCE
1832
1883-01
1834
1833