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<p>[QUOTE=&quot;Joe in PA, post: 1343237, member: 12740&quot;]Hi, Found the below on the 18 K.P marking, which suggests it was made after 1976.&nbsp; Best Regards, Joe</p><p><br /></p><p>***********</p><p><a href="http://www.antique-jewelry-investor.com/gold-ring-marked-18kp-comments.html" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.antique-jewelry-investor.com/gold-ring-marked-18kp-comments.html" rel="nofollow">http://www.antique-jewelry-investor.com/gold-ring-marked-18kp-comments.html</a></p><p><br /></p><p><b>KP Gold Mark - Introduced in 1978</b></p><p><b>by: Anna</b></p><p><br /></p><p>Hi Jenny - 18kp means the gold is guaranteed by the manufacturer to be not less than 18k. The karat mark followed by a P was introduced in the United States in 1978, so any jewelry with this mark is not antique jewelry.</p><p><br /></p><p>kind regards</p><p>Anna</p><p><br /></p><p><b>&quot;P&quot; stand for Plumb</b></p><p><b>by: Yvonne</b></p><p><br /></p><p>The P stands for &quot;plumb&quot; - or exact - which means that the gold is exactly 18k with no tolerance (not under-karated). It&#039;s exactly 18K, not 17, or 19, but 18 on the nose!</p><p>This also means that the ring was made after 1976, when the U.S. National Stamping Act was amended and this</p><p>mark was introduced.</p><p><br /></p><p>Yvonne Hammouda-Eyre</p><p><a href="http://www.antique-jewelry-investor.com/" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.antique-jewelry-investor.com/" rel="nofollow">ANTIQUE JEWELRY INVESTOR</a>[/QUOTE]</p><p><br /></p>

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