
Early inhaler for ether anaesthesia
1847-1848
1847-1848
circa 1846
1851
1848
1852
1853-1857
1839 (original); circa 1988 (replica)
1846
1849
circa 1848
1844
1853-1857
1845-1855
1801-1840 (original); 1901 (model)
1850-1856
1845
1851
1853
1849
1855
1854
1853
1850
circa 1854
1850
circa 1854
1855
1849
1857
1846
1850
1847
1845-1855
1845
1845
1856
1851
1846
1844
1934
1845-1851
1844
1849
1851
1843
1955; 1830
1849
1855
1856
1848-1852