Mexican-style metal viewer by "Sun Sculpture Underwood and Underwood U&U".
 Frith stereoscopic maps
 -Jerusalem, View from the Mount of Olives
 -The cedars of Lebanon
 -Tiberias
 -Gaza, the modern city
 -View of Banias
 Sold with stand and 5 stereoscopic views
 This type of stereoscope, dating from the 1850s to 1900, was designed for viewing stereoscopic maps, which were rapidly gaining popularity. It consisted of two prismatic lenses set within a distinctive visor (which could be made of metal), as well as a wooden support to hold the stereo map. A handle at the bottom facilitated gripping the entire assembly. This type of stereoscope remained in production for a century.
 Holmes stereo or Mexican stereo
 It's an American invention, created by Oliver Wendell Holmes, an American poet and physician, although it's often called the "Mexican stereoscope"! Holmes didn't invent the optical principle with two prismatic lenses. But he did create a practical device with its characteristic visor, wooden stand for holding the stereo card, and handle for gripping.