Get a Mint Stamp Sheet Commemorating 50 Years of Space Exploration and Satellites

This mint stamp sheet was issued for the 2007-08 International Polar Year.  International Polar Years have been held every 50 to 75 years since 1882.  They’re a time when countries from around the world work together to study Earth’s polar regions.  This sheet commemorates 50 years of space exploration and pictures our solar system.  The stamps picture the planets, and the selvage shows a graphic of the planets in their orbits around the sun.  A neat piece of space history – add it to your collection now.