
Early inhaler for ether anaesthesia
1847-1848
1847-1848
circa 1846
1851
1848
1839 (original); circa 1988 (replica)
1849
circa 1848
1801-1840 (original); 1901 (model)
1846
1845
1851
1849
1850
1850
1849
1846
1850
1847
1845
1845
1851
1846
1934
1845-1851
1849
1851
1849
1893-4
1863-7
1850
1851
2000-100 BCE
1955; 1830
1846
1851
1849
1849
1990-96
1850
1830 (original); 1967 (model)
1775-1799 (original); 1900-1907 (model)
circa 1850s
1851
1850
1930 (replica); 1834 (original)
circa 1850
1705-1737
1846
1934
1850