The Art of Folding — Ingenious Ideas in Stereoscope Design

Not every stere­o­scope was designed to stand on a table or occu­py a place in the liv­ing room. Some were made to be fold­ed away, car­ried in a pock­et or tak­en along on a jour­ney. And the vari­ety of designs is quite remarkable.

Fold­ing stere­o­scopes appeared sur­pris­ing­ly ear­ly. Two exam­ples from the 1850s, Claudet’s View­ing Case and Mascher’s Improved Stere­o­scope, show how close­ly these ear­ly instru­ments were con­nect­ed to the daguerreo­type era. Although they served a sim­i­lar pur­pose, their mak­ers approached the design rather differently.

By the begin­ning of the 20th cen­tu­ry, fold­ing stere­o­scopes had tak­en on new forms. The French Clégil was designed with ver­sa­til­i­ty in mind, while the ele­gant Stéréo-Mondain has a rather unusu­al sto­ry behind its inven­tion, involv­ing a woman at a time when female inven­tors were still a rar­i­ty in the opti­cal indus­try. And the Span­ish Lohire, made around 1950, demon­strates just how sim­ple and inex­pen­sive a fold­ing stere­o­scope could become.

I’ve cho­sen these five instru­ments because they illus­trate the remark­able range of ideas behind a seem­ing­ly sim­ple con­cept. Some were prac­ti­cal, oth­ers sur­pris­ing­ly sophis­ti­cat­ed, and a few have sto­ries that go well beyond their construction.

Have a look at the objects below — there’s more to dis­cov­er than their com­pact size might suggest.