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Foamcore Backing Boards for mats and frames
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Backing Boards
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3/8" White Acid Free Buffered Foam Core Boards : 10 X 10 - BOXFORLESS.COM
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Custom Cut Acid Free Foam Board | Framing 4 Yourself
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Foamcore Backing Boards for mats and frames
11x14 Black Archival Foamcore Backing - 5 Pack
30 Pack Black Foam Board 8"x10" Foam Core Backing Board Black 1/5" Thickness | eBay
Viewpoint Acid Free Foam Core Backing Boards | Jerry's Artarama
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Amazon.com: Mat Board Center, Pack of 25 Foam Core Backing Boards 1/8" (11x14, White) : Office Products
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MUKCHAP 35 PCS 11 x 14 Inch Foam Boards, 3/16 Inch Thick Black Foam Core Board, Polystyrene Sheets Foam Core Backing Boards for Decoration, Presentations, Art and Craft Projects
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