Good morning PE. Now you've peaked my curiosity. I wonder, was the flag left on the moon made of a special material? Without it's atmosphere, will it last a long time?
According to footnote #10 from this paper, it was a commercially available flag. I just learned this today as well. I imagine the UV exposure has probably done a number on it by now.
It is uncertain who manufactured the flag that was deployed by the Apollo 11 crew. According to a NASA Press Release of 3 July 1969, "the Stars and Stripes to be deployed on the Moon was purchased along with several others made by different manufacturers at stores in the area around the Manned Spacecraft Center near Houston. In order to attach the flag properly to its aluminum staff it was necessary to remove the binding and labels. For this reason the name of the manufacturer cannot be determined." (NASA Press Release 69-83E, 3 July 1969, on file at the JSC History Office). In his book, "All We Did Was Fly to the Moon," (Gainesville, FL: Whispering Eagle Press, 1988), p. 121, Dick Lattimer states that the flags that went to the moon were made by Annin & Co. Randy Beard, Sr., of Annin contacted the Public Affairs Office at NASA Headquarters regarding the flag shortly after the moon landing. His company had supplied many flags to NASA throughout the manned space flight program. Beard was told that three secretaries had been sent out to buy 3x5-foot nylon flags during their lunch hours. After they had returned it was discovered that all of them had purchased their flags at Sears. Annin was the official flag supplier for Sears at the time so this story seemed to confirm that the flag had been made by Annin. Beard was informed that NASA would not confirm the manufacturer of the flag because they didn't "want another Tang" -- in other words, the agency did not want another advertising campaign based upon the fact that a commercial product had been used by the astronauts. (Randy Beard, Sr., Annin & Co., personal communication, 24 August 1992 and 10 September 1992.) Jack Kinzler was unable to verify that the flags were purchased at local stores or that the labels were removed. His notes indicate that the flags were purchased from the Government Stock Catalog for $5.50. (Kinzler, interview, 30 August 1992.)