polarizing microscope - 1850-1900 - Germany - Otto Himmler Berlin

Rare antique polarising microscope. Manufacturer Optical Mechanical Workshop Otto Himmler Berlin, serial number 12269, produced circa 1890. With a high-quality polarising arrangement of the period from Carl Zeiss of Jena. The polariser is inserted into the open aperture diaphragm of the condenser, the analyser apparatus is mounted on the eyepiece. The condenser is laterally adjustable for oblique illumination, the front lens is fold-out. Photos were taken only through the eyepiece. All adjustments function.