Museum Grade Storage Box Photos/Lg Postcards. 4-1/2 x 6-1/2 x 12". Acid-Free, lignin-free, buffered Blue-Gray Barrier Board.

MUSEUM GRADE ARCHIVAL
Storage Box - for Photos/Large Postcards.
4-1/2 x 6-1/2 x 12"
Each box stores up to 450 postcards/photos. Made from solid 60 pt. BLUE-GRAY, lignin-free, acid-free, buffered board. Boxes have metal edges for stacking strength. 1-1/2" deep cover. Ships assembled.