Tru-Vue, founded in 1931, had introduced the first stereo filmstrip viewer in 1932. This, their second viewer, was sold at the 1933 Chicago World's Fair and had the Century of Progress logo on the front. It came with several filmstrips with scenes from the fair. (An even earlier Tru-Vue filmstrip copyrighted 1931 is described at Vintage 3D Viewers.)

A Tru-Vue filmstrip interleaves 14 stereo pairs, with the left and right images of each pair separated on the strip by two images from unrelated pairs. Early strips had standard 35 mm perforations on both sides of the film. One row of perforations was later replaced by holes separated by 42 mm, which meant one perforation per stereo pair, thus making it easier to start the film off correctly when first loaded.

Tru-Vue had exclusive licenses with Disney, which is one reason they were purchased by Sawyers (View-Master) in 1951. Sawyers introduced a new Tru-Vue viewer that used cards with seven stereo pairs.