Difference Engine No. 1
circa 1832
circa 1832
1610; 1923
circa 1846
1847-1848
1846
1834-1836
1830 (original); 1967 (model)
1849
1844
1842
1829
1821
1820
1829
1840-1851
1829
1839 (original); circa 1988 (replica)
1775-1799 (original); 1900-1907 (model)
circa 1848
1850
1831
1840
1851
1848
1831
1837
1840
1829-1851
1838
1990-96
1801-1840 (original); 1901 (model)
1844
1934
1772 (original); 1919 (model)
1838
1838
1705-1737
1820
1851
1820-1850
1833
1851
1837
1828
1825-1835
1846
circa 1850s
1830
1821-1831
1822