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<p>[QUOTE="GDJMSP, post: 4673433, member: 112"]Yeah, but that's NOT what the "sniffer" is. The TPGs do have, and use XRF though. And handheld XRF units do resemble a ray gun.</p><p><br /></p><p>A description, explanation and picture of the "sniffer" - </p><p><a href="https://www.pcgs.com/news/pcgs-coin-sniffertrade-uses-advanced-technology-to-detect-doctored-coins" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.pcgs.com/news/pcgs-coin-sniffertrade-uses-advanced-technology-to-detect-doctored-coins" rel="nofollow">https://www.pcgs.com/news/pcgs-coin-sniffertrade-uses-advanced-technology-to-detect-doctored-coins</a></p><p><br /></p><p>More on the "sniffer" and the "ray gun" - </p><p><a href="https://coinweek.com/education/coin-grading/coin-rarities-related-topics-the-introduction-of-the-pcgs-coin-sniffer-to-detect-doctored-coins/" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://coinweek.com/education/coin-grading/coin-rarities-related-topics-the-introduction-of-the-pcgs-coin-sniffer-to-detect-doctored-coins/" rel="nofollow">https://coinweek.com/education/coin-grading/coin-rarities-related-topics-the-introduction-of-the-pcgs-coin-sniffer-to-detect-doctored-coins/</a></p><p><br /></p><p>Examples and cost of various XRF units, it should be noted they are not all the same -</p><p><a href="https://www.google.ca/search?as_q=cost&as_epq=XRF&as_oq=&as_eq=&as_nlo=&as_nhi=&lr=&cr=&as_qdr=all&as_sitesearch=&as_occt=any&safe=images&as_filetype=&tbs=" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.google.ca/search?as_q=cost&as_epq=XRF&as_oq=&as_eq=&as_nlo=&as_nhi=&lr=&cr=&as_qdr=all&as_sitesearch=&as_occt=any&safe=images&as_filetype=&tbs=" rel="nofollow">https://www.google.ca/search?as_q=cost&as_epq=XRF&as_oq=&as_eq=&as_nlo=&as_nhi=&lr=&cr=&as_qdr=all&as_sitesearch=&as_occt=any&safe=images&as_filetype=&tbs=</a>[/QUOTE]</p><p><br /></p>
[QUOTE="GDJMSP, post: 4673433, member: 112"]Yeah, but that's NOT what the "sniffer" is. The TPGs do have, and use XRF though. And handheld XRF units do resemble a ray gun. A description, explanation and picture of the "sniffer" - [URL]https://www.pcgs.com/news/pcgs-coin-sniffertrade-uses-advanced-technology-to-detect-doctored-coins[/URL] More on the "sniffer" and the "ray gun" - [URL]https://coinweek.com/education/coin-grading/coin-rarities-related-topics-the-introduction-of-the-pcgs-coin-sniffer-to-detect-doctored-coins/[/URL] Examples and cost of various XRF units, it should be noted they are not all the same - [URL]https://www.google.ca/search?as_q=cost&as_epq=XRF&as_oq=&as_eq=&as_nlo=&as_nhi=&lr=&cr=&as_qdr=all&as_sitesearch=&as_occt=any&safe=images&as_filetype=&tbs=[/URL][/QUOTE]
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