
Early inhaler for ether anaesthesia
1847-1848
1847-1848
1838
1830 (original); 1967 (model)
1842
circa 1840
1842
1841
1847
1841
1838
1846
1844
1844
1840
1842
1838
1843
1955; 1830
1846
1848
1845
1842
1893-4
1934
1863-7
2000-100 BCE
1840
1845
1839
1839
1845
1840-1845
1845
1838
1839
1990-96
circa 1846
1846
1934
1838
1775-1799 (original); 1900-1907 (model)
1801-1840 (original); 1901 (model)
1839 (original); circa 1988 (replica)
4000-2001 BCE
1840
1930 (replica); 1834 (original)
1839
1846
circa 1848
1705-1737