Stereoscope ‘Clairvoyant’ ind Original ‘Stereoscopic Treasury’ Storage Box

The Clair­voy­ant has a dis­tinc­tive appear­ance. Between the two lens­es is a ribbed glass pan­el serv­ing as an alter­na­tive to a sep­tum. The dis­tance between the lens pan­el and the stere­oview hold­er can be adjust­ed for focusing.
The view­er was avail­able in a deluxe stor­age box with addi­tion­al space for stere­oviews. These box­es were marked The Stereo­scop­ic Trea­sury. The Clair­voy­ant was also dis­trib­uted in a sim­pler leather case.
(from: Com­pendi­um of Stereoscopes)