"The Royal Family Leaving the Reception Pavilion for the Palace, After Their Arrival at Trondhjem, Norway." (15506)

Published by Keystone View Company, formerly one of the largest stereoview publishers in the world.

This is a stereoview (also known as a stereograph or stereoscope card). It was one of the first forms of 3D photography. The images were captured with a special stereoscopic camera, which had two lenses - simulating the view of our left and right eyes. The two, nearly identical pictures were then mounted next to each other (most commonly on a piece of cardstock, glued on as photographs or printed as lithographs). The image could then be seen in three dimensions when viewed through a device known as a stereoscope, stereopticon, televiewer and/or realisticscope.

Standard-size stereograph, measuring about 3.5 x 7 inches.