If you want to preserve a poster, have it framed under glass with acid-free mounting, or roll and tie it loosely for safe storage. Plexiglas sheets filter out ultraviolet light and may be substituted for glass in a frame.
If you want to preserve a poster, have it framed under glass with acid-free mounting, or roll and tie it loosely for safe storage. Plexiglas sheets filter out ultraviolet light and may be substituted for glass in a frame.