American Optical AO Spencer Sixty Microscope Monocular Eyepiece Part

AO American Optical One-Ten Microscope Illuminator Lens Assembly

American Optical AO Spencer 10x N.A. .25 Microscope Objective Lens

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

Vintage American Optical Cat No. 176 10X W.F Microscope Part Eyepiece Lens (A8)

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

2 Pcs Biological Microscope Experiment Eyepiece Compact Optical Lens

2 Pcs Compact Optical Microscope Lens Biological Eye Replacement