Schwann's microscope (no case)
1835
1835
1794
circa 1840
1790-1840
1842
1842
1790-1819
1790-1819
1790-1819
1790-1819
1790-1819
1827
1837
1793-1803
1834
1834
1834
1803-1828
1821-1831
1842
1837
1832
1783
1785
1785
1810-1840
1833
1810-1840
1800-1830
1785
1837
1815-1825
1796-1826
1934
circa 1800
1822-1840
circa 1805
1797-1804
1790-1819
1790-1819
1790-1819
1808
1790-1819
1790-1819
1790-1819
1790-1819
1790-1819
1809
1790-1819
1790-1819