Set includes 1) R2A Reflex Autocollimator with Power Supply for 110V A/C.
                     2) M2M Focal Plane Micrometer:   Scale to .002 mm.
                     3) Richter S-2 Focal Plane  Microscope.
                     4) Optical Bench Model "B".
                     5) Richter Collimator Objectives 60 mm, 180 mm and 254 mm. Focal Length.
                     6) Richter Motion  Picture Lens Standard "C" Mount 17.52mm or 0.690" Back Focus.