
Difference Engine No. 1
circa 1832
circa 1832
1794
circa 1800
1834
1832
1798
1797
1825
1826
1834
1834
1808
1808
1809
1829
circa 1805
1807
1815
1815
1795-1810
1810-1817
1800
1807
1821
1805
1796
1800
1794
1800
1800
1812
1800
1830
1795-1805
1807
1812
1795
1800
circa 1808
1807
1814
1802
1795
1795
1816
1802
1799-1802
1797-1804
1795-1805 (original)
1821-1831