
Oxygen cylinder used by climbers on 1953 Mount Everest expedition
1952-3
1952-3
1830 (original); 1967 (model)
1955; 1830
2000-100 BCE
1903 (original); 1982 (model)
1839 (original); circa 1988 (replica)
1801-1892 (prepared); 1946 (element replaced)
1990-96
4000-2001 BCE
1990-95
2800 BCE
circa 3000 BCE
1798 (original); 1977 (model)
2050-1750 BCE
1935; 1958
1960-1979
1879 (1956)
2000-1001 BCE
1940-03
1942-09
1942-07
1942-07
1939-02
1963-01
1938-10
1947-04
1940-01
1946-01
1955-10
1947-05
1960-01
1941-11
1941-12
1966-07
1939-12
1951-03
1957-11
1937-10
1956-09
1945-06
1940-01
1940-02
1940-03
1959-04
1940-01
1945-11
1943-11
1939-11
1939-02
1943-11