
Difference Engine No. 1
circa 1832
circa 1832
1838
1839 (original); circa 1988 (replica)
1791
1834-1836
1837
1794
1837
circa 1840
circa 1800
1830-1840
1834
1832
1798
1797
1825
1790-1819
1790-1819
1790-1819
1790-1819
1790-1819
1790-1819
1790-1819
1790-1819
1790-1819
1790-1819
1837
1840
1826
1834
1834
1808
1790-1819
1808
1790-1819
1790-1819
1809
1790-1819
1790-1819
1835
1829
circa 1805
1807
1815
1815
1795-1810
1810-1817
1801-1838
1893-4
1802