
Early inhaler for ether anaesthesia
1847-1848
1847-1848
circa 1846
1851
1852
1848
1835
1838
1801-1840 (original); 1901 (model)
1839 (original); circa 1988 (replica)
1846
1849
circa 1848
1844
1845
1851
1849
1840
1842
1850
1837
1837
1837
1850
circa 1840
1839
1843
1849
1841
1837
1840-1845
1839
1955; 1830
1842
1849
1840-1850
1846
1837
1850
1838
1835
1841
1893-4
1838
1835-1845
1863-7
1850
2000-100 BCE
1836
1851
1842