
Difference Engine No. 1
circa 1832
circa 1832
1801
1815-1825
1801-1830
1838
1830 (original); 1967 (model)
1829
1837
1837
circa 1840
1808
1809
1835
1837
1829
circa 1805
1801-1823
1826
1831
1807
1815
1815
1810-1817
1801-1838
1838
1837
1808
1800
1807
1821
1805
1800
1800
1800
1800
1830
1820-1840
1807
1812
1800
circa 1808
1807
1814
1840
1802
1816
1802
1833
1820-1830
1831