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1:30
Something you may not know about the Library of Congress: The Preservation and Testing Division has labs where staff research how to best support the preservation, interpretation and research of manuscripts, books and other Library materials. They study paper, inks, adhesives, sound recordings, storage conditions, and much, much more! Here, conservation scientist Cindy Connelly Ryan is making reconstructions of historic artists’ colors using recipes from a Revolutionary War-era document held in
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Feb 7, 2024
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