For sale - an unopened package of Light Impressions Exeter Standard 4-ply mat board plus 7 additional sheets of the same board. Total of 32 sheets. 22x28 in size. The unopened pack is $239.80 at Light Impressions right now. Make me an offer for all of it. You can see it at: http://www.lightimpressionsdirect.c...l-wt-22-x-28-25-pkg/standard-mat-board-sizes/ Here are the specs from their website: Get the best of both worlds: a board that's not only economical, but also well made! Our Exeter Conservation Board has proven to be extremely stable and safe for important documents and artwork, and has passed demanding accelerated aging tests (i.e., P.A.T). It is acid-free, made from purified wood pulp, and has a pH of 9.0 +/- .5, buffered with calcium carbonate. 2-ply (27.5pt., 1/32" thick), 4-ply (55pt., 1/16" thick) and 8-ply (110pt., 1/8" thick).