Item is a 46B Visual Survey Telebinocular used to view two nearly identical photographs, or stereographs, as one three dimensional image. The stereograph would be placed in the card holder and adjusted to fit the user's vision until the two images overlap to mimic a three-dimensional effect. Item is metal with a plastic eye piece. A lamp bulb is installed and attached to a power cable. Lamp bulb illuminates backs of stereographs or transparencies when viewed through the eye piece. Patent No. 2557608 made by Keystone View Company. Comes with 4 stereographs made by various photographers and studios such as G.W. Wilson, Underwood & Underwood and B.W Kilburn.

This item is a Keystone Correct-Eye Scope manufactured by Keystone Viewing Company. Item is made of wood, metal and plastic.

This item is a hand held stereoscope made of wood and aluminium. The hood of the viewer is adorned with a floral engraving and a seal of a deer. The viewer is lined with velvet. The handle is able to bend back onto the viewer. This object was used to view two nearly identical photographs, or stereographs, as one three dimensional image. The stereograph would be placed in the sliding card holder and adjusted to fit the user's vision until the two images overlap to mimic a three-dimensional effect. The hood is designed to keep out additional light.

Written on object: "Manufactured Keystone View Co. Meadville, PA. Patented 1904"