
Oxygen cylinder used by climbers on 1953 Mount Everest expedition
1952-3
1952-3
1830 (original); 1967 (model)
2000-100 BCE
1955; 1830
1938 and 1951
1801-1892 (prepared); 1946 (element replaced)
4000-2001 BCE
1839 (original); circa 1988 (replica)
1903 (original); 1982 (model)
1990-95
1962-05
1960-1979
1970-1900
30 CE
30 CE
2686-2613 BCE
1859; 1986
1945-50
2000-1350
2000-1350
2000-1350
2000-1350
2000-1350
2000-1350
30-200
2000-1350
20-500
2000-1350
2000-1350
20-500
2000-1000
3500-1000
2000-1350
1950-1900
1972-3
2000-1000
1950-1920
2000-800
1962-07
1968-04
1943-12
1951-06
1945-11
1947-04
1962-10
1943-11
1956-09
1945-07
1943-11
1964-10