
Oxygen cylinder used by climbers on 1953 Mount Everest expedition
1952-3
1952-3
1830 (original); 1967 (model)
circa 1910
1907
1909-1910
1839 (original); circa 1988 (replica)
1906
1907
1668; 1924
1990-96
1610; 1923
1772 (original); 1919 (model)
1909
2000-100 BCE
1925; 1862
1902; 1913-1920
1990-95
1934
1908
1908
1934
circa 1908
1705-1737
1910 - 1954
1907
1907 - 1986
1907
1580-1588; 1930
1907
1910
1903 (original); 1982 (model)
1907
4000-2001 BCE
1906
1910
1960-1979
2050-1750 BCE
1955; 1830
1936
1910
1834-1836
1910
1798 (original); 1977 (model)
1879 (1956)
1907
2000-1001 BCE
1910 - 1936
1906
1910
1909