![](https://coimages.sciencemuseumgroup.org.uk/299/616/large_thumbnail_1928_0801__0001_.jpg)
Schwann's microscope (no case)
1835
1835
1849
circa 1840
1842
1850
1842
1837
1834
1834
1834
1840-1850
1847
1842
1845
1845
1837
1833
1848
1851
1837
1835-1845
1934
1851
1850
1849
1850
1846
1837
1836
1845
2000-100 BCE
1893-4
1850
1841
1863-7
1840
1843
1841
1837
1839
1955; 1830
1837
1849
1838
1851
1835
1846
1834-1844
1837
1839