stereopticon

The effect is at once newfangled and old-fashioned, a mod stereopticon.

As you might expect, the silent images do look like a turn-of-the-20th-century stereopticon in which, yes, the images and the people therein are actually moving.

Along with hundreds of vacuum cleaners, Gorsuch began loading the first of an estimated 10,000 stereopticon cards - each one featuring a side-by-side pair of photographs that provide a 3-D image when seen through the hand-held set of lenses.

A stereopticon slide in the exhibit shows people wearing rags and, with a few exceptions, barefoot.

And she always had her stereopticon and slides, and some of her books.