What is the difference between a hinge and a mount?

A hinge is a piece of glassine paper with water-activated adhesive on both ends. To apply a stamp to an album page using a hinge, lightly moisten the ends of the glassine paper and stick one side to the back of the stamp and the other side to your album page.

A mount is a sturdy “envelope” with a crystal-clear front. Mounts are adhered to the album page and then the stamp is slid into the pocket. Mounts are the best way to protect your stamps from common threats like fingerprints, dust, creases, and tears.