MICROSCOPE, MONOCULAR, 4X-10X-40X-100X, GRADUATED MECHANICAL STAGE, ABBE CONDENSER WITH IRIS DIAPHRAGM, OIL DIN OBJECTIVES, BUILT-, SOLD AS EACH UNICOMicroscope, Monocular, 4X 10X 40X 100X, Graduated Mechanical Stage, Abbe Condenser With Iris Diaphragm, Oil Din Objectives, Built , Sold As Each Unico Unico M251 Series Microscopes, Parts & Accessories Unico M251 Series Microscopes, Parts & Accessories The M250 Series Microscopes Have Been Recently Updated With The Reverse Nosepiece, Larger Base And Sturdier Body Construction Adding More Value For The Money. Microscope, Monocular, 4X 10X 40X 100X,