Showgard Stamp Mounts are made from archival, plasticizer-free oriented

polystyrene. They contain no softening agents or other components that

might be harmful to postage stamp ink, paper, or gum. Showgard Stamp

Mounts do not shrink or discolor and are 100% waterproof. The

components used in Showgard Stamp Mounts have had philatelic application

for more than 40 years in every climate of the world and proven

perfectly safe for stamps. Showgard mounts have a very functional

design using twin parallel welds to keep stamps securely in position

while permitting free passage of air around the stamps. Showgard Stamp

Mounts are the most popular, most widely used and most respected stamp

mount in the United States market.

Backing Colors Available: Black or Clear
Height: 31mm
Width: 41mm
Common Uses for This Size: US Semi Jumbo Horizontal
Number of Stamp Mounts per Pack: 40