12.5" long by 8.5" high heavy gauge steel with protruding plastic eyepiece. 1950s. Penny operated machine and function was viewing three dimensional film cards. A group of these cards are included although dust soiled and slight warp. Titles include Ringling's, Circus Day, Mother Goose, Black Sambo and several others. Machine is missing knob from front plunger that advances the film cards but still works. Also missing is locking mechanism from coin drawer. Machine not tested as it needs a new plug. Front has some scratches and oxidation on top of cover. Sloping top with coin slot has missing paint areas. Largest is .75x6". Front and side decals have some scratches. Overall Fine. An interesting go-with for collectors of Tru-Vue/Viewmaster/3-D memorabilia.