The Postal Service issued two 3.20-dollar Escaping the Gravity of Earth commemorative stamps on a souvenir sheet in Anaheim, CA, on July 9, 2000. The stamps were designed by Richard Sheaff of Scottsdale, Arizona.
These two Priority Mail stamps feature holograms of the International Space Station and represent American technology solving the problems of escaping the gravitational pull of Earth and learning how to send missions into Earth's orbit. The hologram on the left stamp is based on a computer-generated NASA image. The hologram on the right stamp is based on a NASA artist's conception of the International Space Station. The selvage photograph depicts astronauts David Leesma and Kathryn Sullivan in the open cargo bay of the Challenger space shuttle during an October 1984 mission.
Postal Bulletin (June 1, 2000)