
Oxygen cylinder used by climbers on 1953 Mount Everest expedition
1952-3
1952-3
1830 (original); 1967 (model)
1936
1937
1936
1839 (original); circa 1988 (replica)
1937
1990-96
1936
1937
1936
2000-100 BCE
1937
1990-95
1937
1903 (original); 1982 (model)
4000-2001 BCE
1960-1979
2050-1750 BCE
1937
1937
1936
1955; 1830
1936
1798 (original); 1977 (model)
1879 (1956)
2000-1001 BCE
1937-1937
1801-1892 (prepared); 1946 (element replaced)
1936
1888; 1984
1936
6000-5000BCE
1936
1937
1501-1600; 1972
1935; 1958
1976; 1776
1991-1783 BCE
1936
1962-05
1936
1937
circa 1936
circa 3000 BCE
8500-2000 BCE
1937
circa 1936
1936
1937