20.4mm Optical Glass Eyepiece Reticle Microscope Ocular Micrometer Slides

Microscope Eyepiece Micrometer Reticle Measuring Micrometer Calibration Ruler

Microscope Eyepiece Micrometer Crosshair Reticle Microscope Optical Measurement

Pair of WF5X Microscope Eyepiece 30mm Ocular Optical Lens with Eyeguards

8.5mm - 29mm Cross Line Calibration Reticle Microscope Eyepiece Micrometer Line

For Parts or Repair Antique Brass "Top-Hat" Style Microscope Eyepiece Ocular Len

Negative Microscope Micrometer Dark Field Bright Line Cross Eyepiece Reticle

Optical Glass Calibration Ruler Ocular Reticle Micrometer Calibration Slides