Ultra Len Microscope Type MS-11 ce 1920s

An “Ultra Len Microscope Type MS-11″ made by Scientific Apparatus Company of Milton ,Massachusets, c1920s. This simple dissecting microscope retains its orginal thermoplastic case with slots for three removable lens ( 125X, 225x and 325X), in addition to the one in the scope, which is also 225X and probably a spare. Height of instment is 3.75” or 9.3cm. Mirror missing. But, optics in vg condition.