
Oxygen cylinder used by climbers on 1953 Mount Everest expedition
1952-3
1952-3
1907
1830 (original); 1967 (model)
1906
1955; 1830
1906
1934
1907
1906
2000-100 BCE
1872 (original); 1909 (model)
1801-1892 (prepared); 1946 (element replaced)
1907
1930 (replica); 1834 (original)
1839 (original); circa 1988 (replica)
1705-1737
4000-2001 BCE
1903 (original); 1982 (model)
1907
1934
1907
1936
1990-95
1610; 1923
1834-1836
1907
1925; 1862
1902; 1913-1920
1907
1962-05
1668; 1924
1960-1979
1783; 1914
1907
1906
1907
1907
1907
1907
1906
1907
1907
1906
1907
1907
1907
1906
1906
1907
1906