
Oxygen cylinder used by climbers on 1953 Mount Everest expedition
1952-3
1952-3
1945
1830 (original); 1967 (model)
1946
1945
1947
1947
1946; 1946
1944
1945
1947
1947
1946
1946
1946
1955; 1830
1944
1938 and 1951
1944-1945
2000-100 BCE
1946
1903 (original); 1982 (model)
1839 (original); circa 1988 (replica)
1944
1801-1892 (prepared); 1946 (element replaced)
1990-96
circa 1945
1945-1946
1947
circa 1947
4000-2001 BCE
1990-95
1945
2800 BCE
1947
circa 3000 BCE
1945
1798 (original); 1977 (model)
1945
2050-1750 BCE
1935; 1958
1945
1946-07-07
1947
1960-1979
1879 (1956)
1946
2000-1001 BCE
1944-12-01
1946-01-17