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<p>[QUOTE=&quot;philologus_1, post: 25464221, member: 92212&quot;]For any who are unsure what&#039;s up with this thread...</p><p><br /></p><p>A radar sends out a signal.&nbsp; If that signal hits an object it bounces (pings) back the same signal to the sending location.&nbsp; This is the basis for how the word &quot;radar&quot; has come to be used to describe a series of numbers (usually re: currency serial numbers) which are the same frontwards and backwards.</p><p><br /></p><p>To explain better here is a quote from the below web page:</p><p>&quot;<i>Radar Notes have palindromic serial numbers – that means they read the same forward and backward. An example of this is a serial number that reads “02344320” or “24244242.”</i>&quot;</p><p><br /></p><p><a href="https://www.pcgs.com/news/what-are-radar-notes#:~:text=Radar%20Notes%20have%20palindromic%20serial,%2C%20www.HA.com" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.pcgs.com/news/what-are-radar-notes#:~:text=Radar%20Notes%20have%20palindromic%20serial,%2C%20www.HA.com" rel="nofollow">https://www.pcgs.com/news/what-are-radar-notes#:~:text=Radar Notes have palindromic serial,, www.HA.com</a>.</p><p><br /></p><p><br /></p><p>Good question! I was also scratching my head about that.&nbsp; It&#039;s not specifically the coin itself, but rather the PCGS certificate number assigned to the coin, which is: 38966983</p><p><br /></p><p>[ATTACH=full]1630071[/ATTACH]</p><p><br /></p><p>EDIT: [USER=104064]@KBBPLL[/USER] beat me to answering the question.&nbsp; <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie1" alt=":)" unselectable="on" unselectable="on" />[/QUOTE]</p><p><br /></p>

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