
Oxygen cylinder used by climbers on 1953 Mount Everest expedition
1952-3
1952-3
1830 (original); 1967 (model)
1911
1909-1910
1668; 1924
1610; 1923
1910
1910
circa 1910
1909
1910
1872 (original); 1909 (model)
1955; 1830
1912
1910
1910
1912
1934
2000-100 BCE
c.1912
1911
1910
1772 (original); 1919 (model)
1909
1990-96
1839 (original); circa 1988 (replica)
1930 (replica); 1834 (original)
1705-1737
1910
1801-1892 (prepared); 1946 (element replaced)
1934
1903 (original); 1982 (model)
c.1912
c.1912
c.1912
c.1912
4000-2001 BCE
1990-95
circa 1912
1902; 1913-1920
circa 1910
1730-1760 (original); 1931-1939 (replica)
1834-1836
1925; 1862
2800 BCE
1912
1911
circa 3000 BCE
1910
2050-1750 BCE