Smithsonian Space Collection - Unit 1 Science of Rocketry

Over a dozen nations collaborated with the Smithsonian to create this fascinating Great Achievement in Space Exploration Collection. Each unit celebrates a stage in the American space program and includes mint stamps with clear mounts to add to the enlightening folder. The first unit, Science of Rocketry, includes 10 stamps and 3 sheets honoring Robert Goddard and Wernher von Braun. Additional units will follow every 4 to 6 weeks.