Man in Space - Tributes to American Space Accomplishments - World of Stamps Collection! 16 rare and wonderful stamps from around the world. The World of Stamp Series is a rare collection only distributed by the Postal Commemorative Society for its exclusive members. These are rare and hard to find. Most are from the 1980's and early 1990s. Stamps from America, Grenada, Ajman, Yemen, Manama, Paraguay, Rwandaise, Togolaise, and Dominca. The set is approx 11" x 14" and it weighs 0.31lb. The stamps are in plastic sleeves, so they can be removed. The stamps are all in a good, unused condition with one stamp (Rwandaise) with a rip on the bottom left.