
Oxygen cylinder used by climbers on 1953 Mount Everest expedition
1952-3
1952-3
1830 (original); 1967 (model)
1946
1947
1947
1946; 1946
1947
1947
1946
1946
1946
1955; 1830
1938 and 1951
2000-100 BCE
1946
1903 (original); 1982 (model)
1839 (original); circa 1988 (replica)
1801-1892 (prepared); 1946 (element replaced)
1990-96
1947
circa 1947
4000-2001 BCE
1990-95
2800 BCE
1947
circa 3000 BCE
1798 (original); 1977 (model)
2050-1750 BCE
1935; 1958
1946-07-07
1947
1960-1979
1879 (1956)
1946
2000-1001 BCE
1946-01-17
1946-02-03
1947-01-29
1946-09-10
1946-02-21
1946-12-17
1963-01
1946-09-12
1946-01-09
1946-09-30
1947-07-16
1946-01-18
1947-08-16
1946-09-11
1946-09-13