
Difference Engine No. 1
circa 1832
circa 1832
1838
1846
1839 (original); circa 1988 (replica)
1791
1834-1836
1837
1794
1837
1849
1842
1850
circa 1840
1827-1850
circa 1800
1830-1840
1834
1832
1845
1798
1842
1797
1825
1842
1848
1850
1837
1840
1826
1845
1834
1834
1830-1850
1850
1845
1808
1808
1809
1847
1829
circa 1805
1807
1815
1815
1795-1810
1810-1817
1801-1838
1837
1791
1800