Signedplate on top: Fluoroline / ILLUMINATOR MODE / GENERAL ELECTRIC (GE logo) X-RAY CORPORATION
plate on arm: ORTHOSTEREOSCOPE / MADE IN U.S.A. / GENERAL ELECTRIC (GE logo) / X-RAY CORPORATION / SERIAL NO. [blank]
FunctionAn orthostereoscope is used for viewing stereoscopic radiographs, which are radiographs taken at two slightly different angles to produce a 3-dimensional effect.