This antique wooden Planox Heidoplast Rolleidoscop Stereoscope circa 1929 is for viewing 45x107mm stereo slides. It comes with 1 slide. There are a couple of light scuff marks on its exterior. Please see photos. Both lenses are clean and clear.
Mackenstien
Lestrade
ISO
TRU-VUE
TRU-VUE
TRU-VUE
TRU-VUE
TRU-VUE