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<p>[QUOTE=&quot;Pat Dennis, post: 2337622, member: 15280&quot;]Use to collect ephemeral and learned a lot about prints.&nbsp; When you look closely at a print and see little dots....think Andy Warhol&#039;s big dot paintings...you have a good idea it was printed after 1930 when photomechanical was invented. Google &quot;letterpress halftone&quot; and click on the Images to see prints made up of dots.&nbsp; Magazines, newspapers, etc. were printed in this manner.[/QUOTE]</p><p><br /></p>

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