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<p>[QUOTE=&quot;19Lyds, post: 802238, member: 15929&quot;]Coins on sintered planchets can be found in most denominations. The Black Beauty Jefferson Nickels of 1959 was a marketing campaign to sell the nickels.</p><p>&nbsp;</p><p>Yes some of them are quite nice and in higher grades can command strong premiums from certain error collectors.</p><p>&nbsp;</p><p>Sintering is where powder gets baked onto the surface of a coin in much the same manner as the method that wheels get colored for different applications. For copper nickel clad coins with a 100% copper core, copper powder is one of the by products of the tumbling that these coins go through. That powder can cling to the copper nickel surface and if the coin stays too long in the annealing ovens, it turns very dark as the powder bakes onto the surface. The coloration is usually very splotchy and unless you&#039;re not paying attention, the coins look like they are covered in a dark grease and appear abused. The bright copper core gives the sintering away every time though.</p><p>Typically, a coin which is sintered, is much darker than other coins of its type.</p><p><img src="http://i164.photobucket.com/albums/u8/lcl1119/IKEs/Errors/Sintered/IKE1978Sintered15210891PCGSMS66Coin.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p>&nbsp;</p><p><img src="http://i164.photobucket.com/albums/u8/lcl1119/IKEs/Errors/Sintered/IKE1978Sintered15210891PCGSMS66Slab.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p>&nbsp;</p><p><img src="http://i164.photobucket.com/albums/u8/lcl1119/IKEs/Errors/Sintered/IKE1978SinteredPlanchet-01D.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p>For nickels, a batch of sintered coins was produced in 1959 and some enterprising dealer came up with the moniker &quot;Black Beauty&quot;.</p><p><img src="http://i164.photobucket.com/albums/u8/lcl1119/Nickels/Jefferson/Jefferson1959ANACSBlackBeautySlab.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p>They were black but they were also sintered coins.</p><p><img src="http://i164.photobucket.com/albums/u8/lcl1119/Nickels/Jefferson/Jefferson1959BlackBeautySintered-1.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p>Here&#039;s a 2004 Peace Medal Nickel that has a &quot;purpleish sintering&quot;:</p><p><img src="http://i164.photobucket.com/albums/u8/lcl1119/Nickels/Jefferson/2004-DPeace05W.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p>Other well known sintered coins are found in the Presidential Dollar Series:</p><p><img src="http://i164.photobucket.com/albums/u8/lcl1119/Presidential/2007-DSinteredPlanchetGWObvD.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><img src="http://i164.photobucket.com/albums/u8/lcl1119/Presidential/Error%20or%20Variety/2007-DAdamsLightlySinteredPosB12381.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><img src="http://i164.photobucket.com/albums/u8/lcl1119/Presidential/Error%20or%20Variety/2008-PMonroeSinteredPosA12547682-1.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p>&nbsp;</p><p>all of the above &quot;could&quot; be referred to as Black Beauties but its totally up to the discerning error collector as to what premium to pay.[/QUOTE]</p><p><br /></p>

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