
Oxygen cylinder used by climbers on 1953 Mount Everest expedition
1952-3
1952-3
1948
1946
1948
2000-100 BCE
1947
1947
1946-1948
1946
1948
1946
1948
1946
1948
1955; 1830
1946
1938 and 1951
1948
1990-96
1839 (original); circa 1988 (replica)
1801-1892 (prepared); 1946 (element replaced)
4000-2001 BCE
1948
1948
1948
1947
1948
1947
1946-1948
circa 1947
1947
1947-1948
1830 (original); 1967 (model)
1903 (original); 1982 (model)
1990-95
1977; 1204-1206
1948
1947
1948
2050-1750 BCE
1962-05
1879 (1956)
1947
1946; 1946
1946-01-17
1948-10-19
1947-01-29
1946-09-10
1946-02-21
1946-12-17