A Zeiss 'KAPILLAR-ROTATOR' Microscope Accessory
German, c.1890, signed 'CARL ZEISS JENA', in original faux leather covered wooden case, constructed of nickel plated brass with engraved scale to rotator, the description from the 1898 Zeiss catalogue reads 'The instrument serves to rotate very small objects (larvae, stages of segmentation) about a horizontal axis. The objects are examined in small glass tubes which with the part containing the object are immersed in cedar-wood oil, so as to obviate irregular refraction. This apparatus is principally intended for observation with immersion lenses.'
Sold for £264
Result plus buyers premium
German, c.1890, signed 'CARL ZEISS JENA', in original faux leather covered wooden case, constructed of nickel plated brass with engraved scale to rotator, the description from the 1898 Zeiss catalogue reads 'The instrument serves to rotate very small objects (larvae, stages of segmentation) about a horizontal axis. The objects are examined in small glass tubes which with the part containing the object are immersed in cedar-wood oil, so as to obviate irregular refraction. This apparatus is principally intended for observation with immersion lenses.'