Polypropylene. Each page includes an acid-free, archival quality black backing paper insert. 24 pages (48 viewing sides). Black.
Polypropylene. Each page includes an acid-free, archival quality black backing paper insert. 24 pages (48 viewing sides). Black.
Polypropylene. Each page includes an acid-free, archival quality black backing paper insert. 24 pages (48 viewing sides). Black.