Self-adhesive Stamps
In recent years, the use of self-adhesive stamps has become widespread. The first use was by Sierra Leone in 1964, and the United States tried it on a 1974 Christmas stamp, although the experiment was judged a failure and not repeated for many years. Traditional gums remain in use, although differentiated by calling them water-activated. All Israeli postage stamps feature a water-activated adhesive that is certified Kosher.
Read more about this topic: Postage Stamp Gum
Famous quotes containing the word stamps:
“In Stamps the segregation was so complete that most Black children didn’t really, absolutely know what whites looked like.”
—Maya Angelou (b. 1928)