unique c. 1940's vintage american medical cast aluminum freestanding table or bench projecting microscope designed and fabricated by the bioscope manufacturing company, tulsa, oklahoma. the microscope contains an in-built lamp for illumination. the top end of the arm or is adjustable for vertical or horizontal viewing. contains three occulars on a rotating disc with a flip mirror located above the lenses. the wide diameter stage retains the original steel clips. the original rubber coated lamp cord is located at the rear end of the horseshoe-shaped base.