
Early inhaler for ether anaesthesia
1847-1848
1847-1848
1851
1855
1830 (original); 1967 (model)
1839 (original); circa 1988 (replica)
1801-1840 (original); 1901 (model)
1775-1799 (original); 1900-1907 (model)
1853
1849
1854
1853
circa 1854
1850
circa 1854
1849
1848
1850
1852
1955; 1830
1849
1855
1848-1852
1851
1863-7
1850
1851
1852
1854
1855
1847
1893-4
1934
1849
2000-100 BCE
1855
1850
1851
1852
circa 1854
1851
1849
1849
1990-96
circa 1850s
1851
1850
1849
circa 1850
circa 1848
1705-1737