Compound monocular microscope
1870-1880
1870-1880
1875-1877
1893-1959
1949
circa 1904-1907
1871
1937
1851-1855
1950
1870
1900-1914
1910-1920
1958
1853-1858
1890-1910
07-04-1863
1886-1910
1879
1850-1859
1833
1900-1925
1850-1880
1940
1980
1860-1910
1830-1837
1910
1871-1900
1851-1900
1903
1871-1900
1880-1920
1937-1958
1937
1950-1960
circa 1880
1870-1880
1937-1958
1870
1937