Archival Methods Onyx Portfolio Box (13 x 19 x 1.4", Black Buckram with Black Interior)

With a clamshell design, the 13 x 19 x 1.4" Onyx Portfolio Box from Archival Methods flips open to allow easy access to your prints. The interior of the box is lined with an 80 lb acid- and lignin-free black paper. With a depth of 1.4", the clamshell box can accommodate 14x 4/2 ply, 10x 4/4 ply, and 20x 2/2 ply matted prints. The adhesive used in construction is pH balanced, and the archival box has passed the Photographic Activity Test (PAT), which makes the box suitable for long-term storage.