
Difference Engine No. 1
circa 1832
circa 1832
1834
1832
1825
1826
1834
1834
1829
1821
1830
1821-1831
1831
1955; 1830
1893-4
1863-7
1829
2000-100 BCE
1833
1831
1826
1826
1830
1826
1831
1830
1829
1930 (replica); 1834 (original)
1821
1830
1990-96
1833
1824
1823-1825
1822
1705-1737
1828
1823
1825
1821
1832
1830 (original); 1967 (model)
1824
1823
1829
1870-1877
1832
circa 1821-1825
1772 (original); 1919 (model)
1775-1799 (original); 1900-1907 (model)
1829