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

AO Spencer Microscope Objective Lens 10X NA .25 from American Optical 60 Sixty

AO American Optical Microscope Objective 10X Plan Achro 10/.25 Cat#1019

AO Spencer 10X Mag Microscope Objective 2mm Mount .25 Ocular Optical Lens

Swift Microscope Objective: 10x-.25NA, RMS Thread

AO American Optical Spencer 10x NA .25 Microscope Objective Lens Cat. 1076

AO American Optical 10/.25 Plan Achro Microscope Objective Lens Cat.1019 Austria

ProScope Microscope Objective Lens PLAN DIN 4X 10X 20X 40X 60X 100X RMS Thread