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Leica Leitz Microscope 1S1 0S23 Phase Ring for Condenser Slider

Leitz 512821/20 Microscope Binocular Head with Eyepiece Barrels

Leitz 513704 Microscope Slide Filter Made in Germany

Leitz Wetzlar 512740/20 Microscope Head with Eyepiece Barrels, Made in Germany