
Early inhaler for ether anaesthesia
1847-1848
1847-1848
circa 1846
1851
1848
1838
1839 (original); circa 1988 (replica)
1849
circa 1848
1844
1801-1840 (original); 1901 (model)
1846
1845
1851
1849
1840
1842
1850
1837
1837
1837
1850
circa 1840
1839
1849
1837
1840-1845
1839
1840-1850
1846
1837
1850
1838
1847
1840-1851
1845
1845
1842
1851
1846
1844
1934
1845-1851
1837
1844
1840
1849
1851
1842
1843
1849