SPENCER LENS CO 16MM-N.A.0.25-10X MICROSCOPE OBJECTIVE RARE

:Bausch & Lomb Divisible 16mm 0.25 10x Microscope Objective w/ Case

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

Vintage Spencer Lens Buffalo Brass Objective Lens 10X 16mm N.A. 0.25 #255675

Bausch & Lomb 10X 16mm 0.25 Microscope Objective

American Optical AO Spencer 10X/0.25 Microscope Objective Lens Part # 1076

AO Spencer 10X NA 0.25 infinity Microscope Objective Lens 10X American Optical

Microscope Objective 10x