
Difference Engine No. 1
circa 1832
circa 1832
1850-1860
1858
1838
circa 1846
1847-1848
1851
1860
1862
1860
1835
1853-1857
1831
1846
1855
1830 (original); 1967 (model)
1845-1855
1839 (original); circa 1988 (replica)
1844
1801-1840 (original); 1901 (model)
1775-1799 (original); 1900-1907 (model)
1829
1840
1862-1863
1850-1859
1853
1865
1867-1868
1849
1846-1859
1854
1853
1837
1837
1834-1844
1837
circa 1854
1850
circa 1854
circa 1840
1850-1860
1839
1860
1849
1842
1840-1850
1846
1850-1859
1842
1848