OLYMPUS PL20 / 0.40 0.17 Phase Contrast Microscope Objective

Olympus A 20PL 0.40, 160 / 0.17 T6 Phase Contrast Microscope Objective - BH, CH

Fisher Scientific 20X/0.40 160/0.17 Phase 20 DM Microscope Objective

Olympus Tokyo Japan PL 20x 0.40 0.17 Phase Contrast Microscope Objective Lens

Olympus SPlan 40, 0.70 160 / 0.17 Microscope Objective

Olympus Microscope Objective Plan 10x Ph1 Phase Contrast

Olympus CWHK 10X/18L Microscope Eye-Piece Pair/Set of 2 for CH-2 Microscope

Nikon Ph2 20 DL 0.4 160/0.17 Dark Low Microscope Objective Lens Made in Japan