
Oxygen cylinder used by climbers on 1953 Mount Everest expedition
1952-3
1952-3
1830 (original); 1967 (model)
1911
1909-1910
1668; 1924
1610; 1923
1907
1910
1910
1908
circa 1910
1909
1910
1906
1906
1912
1910
1910
1912
1906
c.1912
2000-100 BCE
1872 (original); 1909 (model)
1955; 1830
1934
1907
1907
1903 (original); 1982 (model)
1772 (original); 1919 (model)
1909
1907
1930 (replica); 1834 (original)
1908
1910
1839 (original); circa 1988 (replica)
c.1912
c.1912
c.1912
c.1912
1908
1801-1892 (prepared); 1946 (element replaced)
1911
1910
1990-96
1907
1906
1705-1737
4000-2001 BCE
1934
1990-95