Museum Grade Storage Boxes
19-3/4 x 13-3/4 x 1.5" TAN.Drop front. Use for Prints & Posters
The archival material used for these boxes is 60 point, solid-core, acid-free, lignin-free cellulose fibers. It is buffered with a 3% calcium carbonate, which blocks migrant acids, The boxes have a pH of about 8.5. They have metal-edged corners and ship assembled. Boxes have passed the Photo Activity Test certifying that they are safe for indefinite storage of prints & photos.