• XRF Spectrum graph
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    XRF Spectrum from the inside of the base of the trophy. The large peak on the left indicates copper, which is most likely the copper plating on the trophy.  Adjacent to this is a smaller pair of peaks indicating the presence of zinc. The group of peaks at the right indicate the presence of lead. (Smithsonian Institution)

  • XRF Spectrum graph

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Courtesy of the Smithsonian National Air and Space Museum

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