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<p>[QUOTE=&quot;Mac3200, post: 106659, member: 1511&quot;]this is a quarter plate ambrotype photo and the wooden box on the table is known as&nbsp;&nbsp; a brewster steroviewer </p><p><br /></p><p><font size="4"><b>Brewster stereoscope</b></font></p><p>Contrary to a common assertion, david brewster did not invent the stereoscope, as he himself was often at pains to make clear.A rival of Wheatstone, Brewster credited the invention of the device to a Mr. Elliot, a &quot;Teacher of Mathematics&quot; from Edinburgh, who, according to Brewster, conceived of the idea as early as 1823 and, in 1839, constructed &quot;a simple stereoscope without lenses or mirrors&quot;, consisting of a wooden box 18 inches long, 7 inches wide and 4 inches high, which was used to view drawn landscape transparencies, since photography had yet to be invented. Brewster&#039;s personal contribution was the suggestion to use&nbsp; lenses&nbsp; for uniting the dissimilar pictures in 1849; and accordingly the <b>lenticular stereoscope</b> (lens based) may fairly be said to be his invention. This allowed a reduction in size, creating hand-held devices, which became known as Brewster Stereoscopes</p><p><br /></p><p>Brewster was unable to find in Britain an instrument maker capable of working with his design, so he took it to France, where the stereoscope was improved by <a href="https://en.wikipedia.org/wiki/Jules_Duboscq" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://en.wikipedia.org/wiki/Jules_Duboscq" rel="nofollow">Jules Duboscq</a> who made stereoscopes and stereoscopic <a href="https://en.wikipedia.org/wiki/Daguerreotype" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://en.wikipedia.org/wiki/Daguerreotype" rel="nofollow">daguerreotypes</a>, and a famous picture of Queen Victoria that was displayed at The Great Exhibition.<a href="https://en.wikipedia.org/wiki/Stereoscope#cite_note-Virtual_Empire-6" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://en.wikipedia.org/wiki/Stereoscope#cite_note-Virtual_Empire-6" rel="nofollow">[6]</a> Almost overnight a 3D industry developed and 250,000 stereoscopes were produced and a great number of<i>stereoviews</i>, <i>stereo cards</i>, <i>stereo pairs</i> or <i>stereographs</i> were sold in a short time. Stereographers were sent throughout the world to capture views for the new medium and feed the demand for 3D.<a href="https://en.wikipedia.org/wiki/Stereoscope#cite_note-dubosq-8" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://en.wikipedia.org/wiki/Stereoscope#cite_note-dubosq-8" rel="nofollow">[8]</a> Cards were printed with these views often with explanatory text when the cards were looked at through the double-lensed viewer, sometimes also called a<i><a href="https://en.wikipedia.org/wiki/Stereopticon" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://en.wikipedia.org/wiki/Stereopticon" rel="nofollow">stereopticon</a></i>, a common misnomer[/QUOTE]</p><p><br /></p>

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