
Copy of Morton's inhaler for ether anaesthesia
1870-1920
1870-1920
c.1912
1915
1830 (original); 1967 (model)
1903 (original); 1982 (model)
1897
1870-1920
1879
1871
1860
1879-1896
1990-96
1914-1918
1886
1890 - 1900
1851
1860-1900
1904
1879
1853
1920
1865
1867-1868
1910-1920
1854
1870-1910
1875
1873-1923
1853
1884
1901
1928
1852
1877
1860
1910
1922
1900
1932
1955; 1830
1927-1929
1860
1914
1895
1896
1870-1880
1862
1870-1910
1858
1875