
Difference Engine No. 1
circa 1832
circa 1832
1801-1830
1801
1815-1825
1819
1800-1830
1829
1796-1798
1835
1805
1821
1806
1793-1803
1837
1794
1837
1837
1820
1803-1828
1795-1805 (original)
1821-1831
1837
1955; 1830
1826
1808
1799
1805
1796-1826
1800-1830
1796-1797
1790-1830
1801-1830
1837
1797-1804
circa 1800
1790-1819
1790-1819
1833
1790-1810
1831
1795-1805
1835
1825-1835
1807
1790-1819
1790-1819
1790-1819
1790-1819
1790-1819
1790-1819