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Whether you are a museum conservator storing priceless paper artifacts, corporate archivist in charge of re-housing thousands of records, or a family history buff, preserving recently found ancestral heirlooms, you should use acid-free document folders to separate, organize, and protect most valuable documents, photos, ephemera and other paper collectibles inside our Archival Document Cases, Archival Record Storage Cartons, and other Museum Quality Boxes.Made from acid-free, lignin-free 10 pt. Perma/Dur stock in light tan for exceptional strength and endurance. Top margin has .5" exposed tab, straight cut and round corners. Price per package of 100 folders.