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Filar micrometer by William Herschel, 1780-1800
1780-1800
1780-1800
1780-1800
1783-1785
1839-1860
1794
1795-1816
1780-1800
1780-1820
1899
1800
1780-1800
1780-1800
1780-1800
1780-1800
1780-1800
1780-1800
1780-1800
1780-1800
1780-1800
1780-1800
1780-1800
1780-1800
1780-1800
1770-1820
1785
1780-1820
1812
1780-1820
1780-1800
1780-1820
1780-1820
1780-1800
1780-1800
1780-1800
1780-1800
1780-1800
1780-1800
1780-1800
1780-1800
1780-1800
1780-1800
1780-1800
1780-1800
1780-1800
1770-1820
1770-1820