
Difference Engine No. 1
circa 1832
circa 1832
1838
1835
1838
1829
1836
1837
1837
1837
1837
1838
1835
1837
1834
1829
1832
1834
1834
1831
1955; 1830
1893-4
1934
1837
1830
1837
2000-100 BCE
1833
1831
1863-7
1829
1829
1838
1832
1772 (original); 1919 (model)
1990-96
1830
1830-1835
1830
1831
1830 (original); 1967 (model)
1833
1930 (replica); 1834 (original)
1829
1829
1829
1705-1737
1837
1835
1835
1828