Pinit Museum Grade Mounting Board. Crescent® 100% Cotton Rag 16 x 20" 4-Ply (.060" thick). Available in White or Ivory. SKU: kmb1620mg4 (0)No Reviews yet Add to Shopping Cart Details Museum Grade Mounting Board Crescent® 100% Cotton Rag - White or Ivory 16 x 20" x 4-Ply .060" thick. Acid-free, lignin-free, buffered, speck-free,... Details Back DetailsMuseum Grade Mounting Board Crescent® 100% Cotton Rag - White or Ivory 16 x 20" x 4-Ply .060" thick. Acid-free, lignin-free, buffered, speck-free, impurity free. Use for mounting 8 x 10", 11 x 14" images.Click on drop-down to choose a color. Reviews 0 Back Ratings & ReviewsNo reviews availableBe the first to Write a Review