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Gold Hits 5-Week High, Silver Eagle Bullion Coins Top 36M

Gold settled up for a second session Tuesday, reaching a five-week high. Other precious metals also added to prior-day gains. Gold for December delivery climbed $7, or 0.6%, to end at $1,251.70 an...

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Twenty Shades of Copper

Twenty Copper Lincoln pennies arranged by darkening shades of red to brown. Grading copper coins can be one of the most difficult tasks a coin collector can encounter. One of the factors that are taken into consideration when grading copper coins (for example, Lincoln pennies) is the color of the copper. As copper comes in contact with air, water and other chemicals the copper will turn from a bright orange-red to a dark chocolate-brown. Third-party grading (TPG) companies assign the following adjectives to uncirculated copper coins: Red, Red Brown, and Brown. In my guide to grading the color of copper coins I have added a chart showing twenty different Lincoln pennies and their associated "color grade." These are actual examples that have been graded by a professional grading service. You can use this chart to determine the shade of copper for your coins.

Individual photos courtesy of Teletrade Coin Auctions, www.teletrade.com

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Twenty Shades of Copper originally appeared on About.com Coins on Tuesday, April 29th, 2014 at 18:38:20.

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