
Difference Engine No. 1
circa 1832
circa 1832
1801
1847-1848
1788
1860
1799-1802
1815-1825
1853-1857
1801-1830
1838
1850-1860
1830 (original); 1967 (model)
1862
1829
1842
1790-1819
1790-1819
1790-1819
1790-1819
1790-1819
1790-1819
1790-1819
1790-1819
1790-1819
1790-1819
1790-1819
1860
1850-1859
1851
1850-1859
1853
1854
1837
1794
1837
circa 1854
1850
circa 1854
circa 1840
1860
1849
1842
1840-1850
1790-1840
1866-1870
1857
1841
1862
1797-1804
1785-1789