
Difference Engine No. 1
circa 1832
circa 1832
1801
1847-1848
1799-1802
1815-1825
1801-1830
1838
1830 (original); 1967 (model)
1829
1842
1837
1837
1850
circa 1840
1849
1842
1840-1850
1841
1808
1809
1835
1837
1847
1829
circa 1805
1801-1823
1826
1831
1807
1815
1815
1810-1817
1801-1838
1841
1838
1846
1844
1837
1844
1850
1808
1800
1807
1821
1805
1800
1800
1800
1800
1830