
Oxygen cylinder used by climbers on 1953 Mount Everest expedition
1952-3
1952-3
1830 (original); 1967 (model)
1913
1839 (original); circa 1988 (replica)
1913
1668; 1924
1990-96
1610; 1923
1772 (original); 1919 (model)
2000-100 BCE
1925; 1862
1902; 1913-1920
c.1912
1990-95
circa 1912
1934
c.1912
1913
1934
1705-1737
1580-1588; 1930
1912
1903 (original); 1982 (model)
4000-2001 BCE
1960-1979
2050-1750 BCE
1912
1955; 1830
circa 1913
c.1912
c.1912
1936
1834-1836
1798 (original); 1977 (model)
1912
1879 (1956)
2000-1001 BCE
1801-1892 (prepared); 1946 (element replaced)
1912
1888; 1984
1730-1760 (original); 1931-1939 (replica)
6000-5000BCE
100-1 BCE; 1501-1600; 1914
1923-07
circa 1920; 1907
1501-1600; 1972
c.1912
1976; 1776
1991-1783 BCE
1962-05