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<p>[QUOTE=&quot;tommyc03, post: 5726035, member: 17665&quot;]Hi Zayne and welcome to Coin Talk. A 1984 cent is made with a zinc core with a very thin layer copper plating. Once these coins are in circulation they can deteriorate quickly if exposed to the elements. The copper plating can have bubbles on it and if these burst, the zinc starts to bleed out of the coin and the coin will break up if it gets real bad. The blob you are describing could be a plating blister and the edge could have broken off.[/QUOTE]</p><p><br /></p>

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