As a collaborative effort with the New York Academy of Medicine, the Academy Folder was designed to display a portrait collection while protecting the pictures from damage. Constructed of 40 point sandstone archival board with a brown Library Summit and a clear, chemically stable 3 mil archival polyester film interior L-weld envelope, the enclosure prevents unnecessary handling while allowing for easy viewing. The polyester film envelope is welded on the bottom and fore edge, and open at the top and spine for easy placement of photos, prints, small maps, postage stamps and certificates. This structure gives protection and easy viewing of both sides of your document. Contact us for prices on special sizes.