A silk American flag carried to the moon by Buzz Aldrin on the Apollo 11 mission, which is estimated at $20,000 to $30,000, is displayed as part of the upcoming Space History Sale at Bonham's auction ... more 
A silk American flag carried to the moon by Buzz Aldrin on the Apollo 11 mission, which is estimated at $20,000 to $30,000, is displayed as part of the upcoming Space History Sale at Bonham's auction house in New York, April 4, 2014. Bonham's Space History sale will feature close to 300 artifacts related to decades of international space exploration. The sale will be held on April 8. REUTERS/Brendan McDermid (UNITED STATES - Tags: BUSINESS SOCIETY SCIENCE TECHNOLOGY) less 
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Reuters | Photo By BRENDAN MCDERMID / REUTERS
Fri, Apr 4, 2014 7:37 PM EDT