
Oxygen cylinder used by climbers on 1953 Mount Everest expedition
1952-3
1952-3
1830 (original); 1967 (model)
c.1912
circa 1915
1913
1910
1910
1915
1909
1910
1915
circa 1916
1913
1910
1955; 1830
1915
1934
1914
2000-100 BCE
1914
1914
1872 (original); 1909 (model)
1915
1910
1912
c.1912
1912
1916
1911
1914
1914-1916
1915
1913
1801-1892 (prepared); 1946 (element replaced)
1910
1930 (replica); 1834 (original)
1839 (original); circa 1988 (replica)
1916
1705-1737
1910
1914
1914
4000-2001 BCE
c.1912
c.1912
c.1912
1911
1915-1916
1915
1903 (original); 1982 (model)