*Unknown species* Olympus Microscope Filter 45mm x2 34422

Olympus KB-3 Blue LBD NCB Daylight Microscope 45mm Filter 34407

*CLEAN GLASS* Olympus LND25 Daylight Microscope 45mm Filter 34412

Olympus CK2 Inverted Microscope Filter Holder Receptacle 45mm

*Brand unknown* 45mm microscope Filter 34352

*CLEAN GLASS* Olympus KB-3 Blue LBD NCB Daylight Microscope 45mm Filter 34413

OLYMPUS MICROSCOPE NEUTRAL DENSITY FILTER N.D.6 ,DIA.45 MM,EXCELLENT CONDITION

Olympus Microscope Drop-in Lens Filter LB-45 Blue 45mm Diameter.