Methacrylate plastic sheet, one side slightly frosted, was sent to the author with instructions to place it in contact with a picture, with the matte side outwards. The author points out the danger of placing such a material close to a painting, and adds that a distance of only 1-2 millimeters produced unacceptable distortion. It is marketed as Anti-Glare plastic sheeting by Richard Daleman Ltd., Latimer Road, London W. 10. -- AATA