Pinit BACKINGS for Whole Newspapers - FLAT. 1960's-2009. 15 x 23" .040" thick Acid-Free & Buffered Board. Indefinite Storage. SKU: KNPWAF40 (0)No Reviews yet Add to Shopping Cart Details MUSEUM GRADE BACKINGS Use for Newspapers - whole/flat 15 x 23" .040 thick Acid-Free & Buffered Board. All white. Use for Indefinite storage. Details Back DetailsMUSEUM GRADE BACKINGS Use for Newspapers - whole/flat 15 x 23".040 thick Acid-Free & Buffered Board. All white. Use for Indefinite storage. Reviews 0 Back Ratings & ReviewsNo reviews availableBe the first to Write a Review