The following is a guest post by Meghan Hill, a preservation specialist in the Preservation Research and Testing Division of the Library of Congress. Conference season is upon us; a time to learn about exciting new initiatives in the preservation field and in turn to showcase our own work, to reconnect with colleagues from other …
Clays, gemstones, corrosion products, poisons, plants, and more – green pigments used in books and manuscripts over the centuries have some surprising origins!