Postage stamps are gummed labels placed on letters or parcels to indicate payment of the charge for postal delivery. They are usually issued by a sovereign nation, by a national post office, or by a single postal monopoly.
Stamp collecting is one of the most popular hobbies in the world.
With the curiosity of an explorer that was with him all the days of his life, FDR immersed himself in the hobby and built a vast collection that, by the time he became President, numbered scores of albums for practically every country of the world. Since the Roosevelt family of the 1800's was deeply involved in shipping and trading with countries as far away as China and India, the young Roosevelt was always pestering his relatives to send him mail and bring him stamps from around the world. No country was left out, no type of stamp was elminated from his interests. He loved them all. And when he went away to prep school, and later Harvard University, he took his stamp collection with him.