Commemorative envelope signed “Buzz Aldrin” beneath typed notation “Commemorating the visit to Argentina of Colonel Edwin E. Aldrin, Jr. with Astronauts Armstrong and Collins Flown with Buzz Aldrin from Mexico to Buenos Aires”.
Air Mail with cancelled Argentine stamp affixed. Stamped address to a collector in the U.S.
The GIANTSTEP-APOLLO 11 Presidential Goodwill Tour emphasized the willingness of the United States to share its space knowledge. The tour carried the Apollo 11 astronauts and their wives to 24 countries and 27 cities in 45 days.