Vintage Refractometer by American Optical TL

American Optical Company Spencer Microscope

AMERICAN OPTICAL LAB MICROSCOPE 150 - RESEARCH VIEW BIO STUDY LENS

American Optical One-Ten Phase Contrast Microscope

Awesome VINTAGE American Optical AO Spencer 1062-1 AA Microscope PARTS

American Optical AO One-Ten Illuminator Model 1130 Microscope Broken, For Parts

American Optical Spencer Radiuscope Microscope Model B

AO American Optical Spencer Binocular Lab Microscope w/ 2 Objectives 10x, 93x