AO American Optical Fifty Spencer Monocular Microscope

American Optical Spencer Professional Fifty Metal Binocular Microscope

American Optical AO Spencer Microscope W Case

American Optical Model Sixty Monocular Microscope

American Optical Model Fifty Monocular Microscope W/ 3 AO Spencer Objectives

AO American Optical Spencer Cycloptic Stereo Microscope W/ AO 10X WF Eyepieces

American Optical Spencer Series 10 Monocular Microscope

American Optical 1036A AO Spencer Microscope Illuminator w/ 1051 Transformer