Creation Date

1881 – 1939

Description

Stereographs. There are 11 miscellaneous cards. On from the "New Educational Series of American and Foreign Views" by Canvassers.
A stereograph is a double-image of the same subject that, when viewed through a stereoscope, appears to be one three-dimensional photograph. Stereographs are made by a single camera with two lenses set approximately two-and-a-half inches apart--about the same distance as that between the eyes. The viewer places the stereograph in the wire slots in the holder and then looks through the two lenses, moving the holder back or forth until the single three-dimensional image is in focus.