Regular Postcard Backings. 3-1/2 x 5-1/2". 0.040" thick. Acid-free, lignin-free, buffered board. All white. Indefinite storage.
Details
MUSEUM GRADE
Regular Postcard Backings
3-1/2 x 5-1/2"
0.040" thick, acid-free, lignin-free, buffered board.
All white. Indefinite storage.
Use with: S35R, SLV35, S35F polyester (mylar) sleeves.
Regular Postcard Backings
3-1/2 x 5-1/2"
0.040" thick, acid-free, lignin-free, buffered board.
All white. Indefinite storage.
Use with: S35R, SLV35, S35F polyester (mylar) sleeves.