Difference Engine No. 1
circa 1832
circa 1832
1853-1857
1610; 1923
1847-1848
1849
1860
1842
1840-1851
1840
1840
1858
1857
1801-1840 (original); 1901 (model)
1705-1737
1851
1844
1833
1852
1851
1837
1830
1846
1855
1857-1858
1840-1845
1843
c1860
1832
1840-1850
1839
1843-1856
1857-1858
1851
circa 1860
circa 1860
1870-1877
1844
1845-1855
1845-1851
1840s
1893-4
1859
c.1837
1830-1835
1856
1857-1858
1851
1858
1856-1857
1856