3-D stamp

There are several styles of 3-D stamps:
 * Anaglyph stamps that use red-blue separation as do 3-D glasses for movies. Such glasses are required to view them properly.
 * Hologram stamps on metallic foil with laser-etched images.
 * Lenticular lens stamps that either show depth or motion.

There are also stamps with a heavily raised vacuum-formed plastic surface.

[[Category:3]]