Vintage Olympic Precision Slide Viewer.  Made in the U.S.A. by Chromettes.  This is a very early-style slide viewer.  It is easy to operate.  35 mm size slides easily fit in the viewer.  There is a slot on top to insert the slides.  There is also a slot in the bottom section.  This will allow the viewing of strips of film. Very nice.  Plastic with an adjustable magnifier.  No cracks.  The original box does have some damage to the graphics from tape that has been removed.  2" X 1 3/4" X 1 3/4".