
Oxygen cylinder used by climbers on 1953 Mount Everest expedition
1952-3
1952-3
1830 (original); 1967 (model)
1955; 1830
2000-100 BCE
1839 (original); circa 1988 (replica)
1903 (original); 1982 (model)
4000-2001 BCE
1990-95
1962-05
1960-1979
1970-1900
1873 (original); 1990 (copy)
1917
1970-1875
2000-500 BCE
2000-500 BCE
2000-500 BCE
1991-1786 BCE
1991-1786 BCE
2000-500 BCE
1501-1600; 1978
1795-1805
30 CE
30 CE
2686-2613 BCE
1859; 1986
20-400
1952-3
1923; 1958
2000-1350
2000-1350
2000-1350
2000-1350
2000-1350
2000-1350
30-200
2000-1350
20-500
2000-1350
2000-1350
2000-1350
20-500
2000-1350
20-400
1980-1910
2000-1000
3500-1000
3000-2000 BCE
2000-1350
1950-1900