
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1879
1875
1872
1830 (original); 1967 (model)
1872
1877
1872
1879
1876
1878
1876
1872 (original); 1909 (model)
1875
1879
1875
1955; 1830
1872-1880
1893-4
1934
1879
1880
2000-100 BCE
1875
1873
1872
1880
1880
1874
1873
1705-1737
1879
1878
1880
1873
1878
1878
1934
1875-1877
1930 (replica); 1834 (original)
1872
circa 1880
1879
1888
4000-2001 BCE
1839 (original); circa 1988 (replica)
1875-1878
circa 1880
1877
1875-1880