Category Archives: Frank Wallis

Modern Mules: The Rarest Error Coins

  By Bullion Shark LLC …… When it comes to error coins, a mule is simply a coin that was struck from a die pair that was not intended to go together, and that can be the obverse die, the reverse die, or even the collar die. The two types of mules are those that […]

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Looking Back on the Sacagawea Dollar 20 Years Later

By Adrian Chacon and Joshua McMorrow-Hernandez for PCGS …… Where have the last two decades years gone? It’s hard to believe that, 20 years ago, the United States Mint was releasing the long-awaited Sacagawea dollar. Hailed by the U.S. Mint and many in the numismatic world as a pioneering coin, the Sacagawea dollar was long-anticipated […]

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Five More Rare Modern Coins Worth Big Bucks

Collectors are realizing just how rare certain modern errors and varieties really are   By Joshua McMorrow-Hernandez for CoinWeek ….. The recent private transaction of the ultra-rare 1975 No-S Proof Roosevelt dime for $516,000 USD, coming just a few days after realizing $456,000 during a public sale by Heritage Auctions at the Long Beach Expo […]

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Newly discovered Sacagawea dollar / Washington quarter mule to be offered at Stack’s Bowers Galleries March 2018 Baltimore Auction

Santa Ana, California — Stack’s Bowers Galleries is delighted to offer the 17th known example of the famous (2000)-P Sacagawea dollar / Washington quarter mule in their official auction at the Whitman Coins & Collectibles Baltimore Expo this March. This blunder is among the greatest Mint errors of modern numismatics and has captured the imagination of collectors and roll hunters for two decades

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Newly Discovered Sacagawea Dollar / Washington Quarter Mule to be Offered in Stack’s Bowers Baltimore Auction

Stack’s Bowers Galleries is delighted to offer the 17th-known example of the famous (2000)-P Sacagawea dollar / Washington quarter mule in their Official Auction of the Whitman Coins & Collectibles Baltimore Expo this March. This blunder is among the greatest Mint errors of modern numismatics and has captured the imagination of collectors and roll hunters […]

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