right Reichert Microscope (Austria Nr. 337 427)
This is a research-grade microscope for optical examination under higher magnifications.  It is a Zetopan model with six plan fluotar objectives (4x/0.10, 10x/0.25, 20x/0.4, 40x/0.7, 50x/0.45, 63x/0.85)
  and an X-Y stage with vernier scales. It also has two light sources: one on top and one in the back.  Both illuminators have sliding filter plates with multiple filters.  The top illuminator is a standard model for low-power operation (25W).  The back illuminator uses a 200w short-arc mercury vapor lamp (OSRAM Germany, HBO 200), for generating an intense narrowly focused beam of light that can be filtered to UV (short) wavelengths for examination of small particles.  Between the objectives and eyepieces is a three-filter analyzer.  One slot has a Blau 1.5/0G12  1/GG9 filter,  the center slot is empty, and the third slot has a UV  1/GG9 filter.
  This scope could push the limits of our high-magnification optical microscopy capabilities.  Photos below show the features referred to by numbers here.

        Click on a picture for a larger image:
 
front
Left side
back side