- unbranded stereoscopic viewer for 9x18cm plates or stereoscopic cards with 6 Stereoscopic cards, good condition Simple but beautiful wooden stereoscopic viewer (two different types of wood) unbranded. It is suitable for stereoscopic cards or transparent plates 9x18cm. As you can see in the pictures you are in good condition (remember his age, c.1900 / 1910 I think), with some signs of use. It comes with a lot of 6 Stereoscopic cards with multiple views Albumin.