DescriptionWorker holding a plutonium button.jpg	English: Rocky Flats Plant View of a worker holding a plutonium button. Plutonium, a man-made substance, was rare. scraps resulting from production and plutonium recovered from retired nuclear weapons were reprocessed into valuable pure-plutonium metal.
Date	19 September 1973
Source	memory.loc.gov
Author	Federal government of the United States
Permission (Reusing this file)	Public domainPublic domainfalsefalse This image or media file contains material based on a work of a National Park Service employee, created as part of that person's official duties. As a work of the U.S. federal government, such work is in the public domain in the United States. See the NPS website and NPS copyright policy for more information. Creator: U.S. Department of the Interior, National Park Service, Historic American Engineering Record. Survey number HAER CO-83-31 Source: U.S. Library of Congress, Prints and Photographs Division, "Built in America" Collection. Copyright: "The original measured drawings and most of the photographs and data pages in HABS/HAER/HALS were created for the U.S. Government and are considered to be in the public domain."

A Wikipedia description page is/was here. All following user names refer to en.wikipedia.

• 2008-04-28 00:15 Tillman 412×508× (123751 bytes) VIEW OF A WORKER HOLDING A PLUTONIUM 'BUTTON.' PLUTONIUM, A MAN-MADE SUBSTANCE, WAS RARE. SCRAPS RESULTING FROM PRODUCTION AND PLUTONIUM RECOVERED FROM RETIRED NUCLEAR WEAPONS WERE REPROCESSED INTO VALUABLE PURE-PLUTONIUM METAL (9/19/73). Original cropped