Pinit Conservation-Grade BACKINGS for 14 x 17" Jumbo Lobby Card & Large Tabloid .040" thick Alpha Cellulose board. Acid, Lignin-free, Buffered. All white. Indefinite Storage. SKU: KAF40TABL (0)No Reviews yet Add to Shopping Cart Details Conservation Grade Backing Board for Jumbo Lobby Cards 14 x 17" .040" thickAll white. Lignin-free. Acid-free. Buffered. Contaminant-free. Meets the L... Details Back DetailsConservation Grade Backing Board for Jumbo Lobby Cards 14 x 17" .040" thickAll white. Lignin-free. Acid-free. Buffered. Contaminant-free. Meets the Library of Congress archival standards. Indefinite Storage. Reviews 0 Back Ratings & ReviewsNo reviews availableBe the first to Write a Review