Museum Grade Archival Storage Box for Photos/Large Postcards.
4-1/2 x 6-1/2 x 12".
Acid-Free, lignin-free, buffered.
TAN Barrier Board.

Storage Box - Photos/Large Postcards
4-1/2 x 6-1/2 x 12"
Each box stores up to 450 postcards.

These Museum Grade archival boxes are lignin-free, acid-free, buffered and have a pH of 8.0-9.0. They have passed the Photo Activity Test for safe, indefinite storage of postcards/photos. They come with metal-reinforced corners which provide extra strength for stacking.