Best Seller | Archival Methods 4-Ply Bright White 100% Cotton Museum Board (16 x 20", 25 Boards) 40-408 Archival Methods 4-Ply Bright White 100% Cotton Museum Board contains 25 boards that measure 16 x 20 each. The board is a high-quality mat board used for many fine print and document projects. Whether for traditional print or digital technology this... more | | $140.00 FREE shipping go to store |