Construction
The stamp adheres by pressure rather than by moistening traditional gum. It is normally supplied on release backing until use.
Type study · adhesive
Self-adhesive stamp
Pressure-sensitive adhesive and release backing change how the stamp is separated, stored and applied.
Edge clue
A die-cut serpentine edge can visually echo perforations without being created by punching holes. Compare the manufacturing logic, not just the silhouette.
Preservation note
Adhesive chemistry, backing and age can affect handling. This page intentionally stops short of conservation treatment advice; significant or valuable material should be assessed with appropriate specialist guidance.