Pinit BACKINGS for Current Trade Papers. 10-3/4 x 13-1/4" .028" thick Acid-Free Board. Long-term Storage. SKU: KAF28TPC (0)No Reviews yet Add to Shopping Cart Details BACKINGS for Current Trade Papers 10-3/4 x 13-1/4" .028" thick Acid-Free Board White on two sides. Use for long-term storage. Details Back DetailsBACKINGS for Current Trade Papers10-3/4 x 13-1/4" .028" thick Acid-Free Board White on two sides. Use for long-term storage. Reviews 0 Back Ratings & ReviewsNo reviews availableBe the first to Write a Review