
Oxygen cylinder used by climbers on 1953 Mount Everest expedition
1952-3
1952-3
1830 (original); 1967 (model)
1955; 1830
1927
1934
1927
2000-100 BCE
1927
1924
1927
1926
1926
1927
1801-1892 (prepared); 1946 (element replaced)
1930 (replica); 1834 (original)
1839 (original); circa 1988 (replica)
4000-2001 BCE
1903 (original); 1982 (model)
1934
1926
1936
1990-95
1834-1836
1926
1926
1927
1962-05
1960-1979
1927
1926
1927
1927
1926
1927
1927
1927
1927
1970-1900
1927
1927
1927
30 CE
30 CE
2686-2613 BCE
circa 1927
1926
1859; 1986
1945-50
1927
1927