Stereoview: 19th Century 3D

The stereoview is a double photograph, or printed image, paired in such a manner that when viewed with a stereoscope it appears as a three dimensional or solid image.

The earliest stereoviews were daguerreotypes, and the rarest tintypes. The color and thickness of a mount, and the printing used for the labels, can provide a great deal of information about a stereoview.