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<p>[QUOTE=&quot;DonnaML, post: 7321507, member: 110350&quot;]Anybody who&#039;s spent a lot of time at art museums should have noticed the&nbsp; difference between looking at a painting -- say, a Van Gogh -- in a frame without glass covering it, and one that does have glass in the frame. The glass makes it much more difficult to appreciate the texture and three-dimensionality of the paint.&nbsp; The glass forms a barrier between the viewer and the painting, no matter how clear and thin the glass may be. Now imagine replacing the glass with plastic, like the plastic used for coin slabs. I think one would probably be just as well off viewing a photograph of the painting. The difficulty would be multiplied.[/QUOTE]</p><p><br /></p>

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