
Oxygen cylinder used by climbers on 1953 Mount Everest expedition
1952-3
1952-3
1830 (original); 1967 (model)
1910
1872 (original); 1909 (model)
1911
1955; 1830
1910
1910
1934
2000-100 BCE
1910
1909
1910
1910
1705-1737
1910
1911
1934
1930 (replica); 1834 (original)
1801-1892 (prepared); 1946 (element replaced)
4000-2001 BCE
1839 (original); circa 1988 (replica)
1903 (original); 1982 (model)
1668; 1924
1990-95
1902; 1913-1920
1610; 1923
1910
1925; 1862
1936
1909
1910
1910
1834-1836
1910
1909
1909
1911
1911
1910
circa 3000 BCE
1911
1910
1909-1910
2000 BCE
1911
1909
1909
1909
1909