Optical Gaging Products Objective Lens 423800 for Optical Pojectors

STARRETT PROFILE PROJECTOR LENS- OPTICAL COMPARATOR LENS 10X BY Edmund Optics

Various J&L Optical Comparator Lens & Alignment Discs.

OGP OPTICAL GAGING PRODUCTS OQ-30 COMPARATOR 10X14 PROJECTION LENS PLUS EXTRA

Optical Gaging - Instruction & Operation of Optical Comparators Kodak #1566

Optical Gaging Products 10x30" 422807 Projection Lens for Nikkon Kodak Projector

OGP OPTICAL GAGING PRODUCTS 20x30 PROJECTION LENS 30" QC-30 COMPARATOR 422808

Jones & Lamson PC-14 Optical Comparator 48MM Lens Tubes to work with Oculars.