
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1862
1860
1839 (original); circa 1988 (replica)
1870
1875
1872
1870
1874
1869
1874
1858
1066; 1876
1872
1856
1861
1861
1934
1861-1866
1857-1870
1858
1875
circa 1860
1877
circa 1868
circa 1861
1854
1860
1867
1867
1876
1858
1865-1866
1858
1875
1862
1855
1870
1865
1875
1955; 1830
1854
1858
1865
1857-1858
1857-1858
1858-03-02
1866
1857-1858
1865