One NEW Olympus BX40 Microscope Sliding Potentiometer Rheostat

*SET* Olympus Microscope BX IX Fine Focus Knob Covers BX40 BX51 BX41 IX51 33930

One NEW Olympus BX50 Microscope Sliding Potentiometer Rheostat

Olympus Microscope BX IX Fine Focus Knob Covers BX40 BX51 BX41 IX51 34330

Compatible Leitz Microscope Dark field Set w/ Aluminum 6061 slider

*SET* Olympus Microscope BX IX Fine Focus Knob Covers BX40 BX51 BX41 IX51 33929

*SET* Olympus Microscope BX IX Fine Focus Knob Covers BX40 BX51 BX41 IX51 34006

*SET* Olympus Microscope BX IX Fine Focus Knob Covers BX40 BX51 BX41 IX51 34039