<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">zograscopes</topic></authority><related type="other"><topic>perspective view prints</topic></related><related type="broader"><topic>optical toys</topic></related><variant type="other"><topic>diagonal mirror</topic></variant><variant type="other"><topic>optical diagonal machine</topic></variant><variant type="other"><topic>optical pillar machine</topic></variant><variant type="other"><topic>zograscope</topic></variant> <note xml:lang="en"><![CDATA[ Devices of the 18th century for viewing "perspective view prints," which are pseudo-stereoscopic images. These table-top viewers consist of a wooden stand supporting a hinged mirror and lens, used to view a flat image placed on the table next to the stand. A perspective effect is created through a combination of image design and lens and mirror properties. Surviving examples are elegant and highly collectible pieces of mahogany furniture, designed for the drawing rooms of affluent homes. ]]></note></mads>