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Seven Dies That Shouldn’t Exist: NGC Certifies Remarkable 1971 Indonesian Coinage Discovery

Lost for 55 Years: Seven Uncancelled Dies Reveal the Secret Life of Indonesia’s 1971 Coins More than half a century after Indonesia rebuilt its circulating...
Mint Error: "Gold Washington Quarter" 1970-S Washington Quarter Overstruck on 1898 Gold Liberty Half Eagle

The Gold Quarter That Shouldn’t Exist: 1970-S Proof Error Heads to Auction

Gold Washington Quarter Mint Error - Struck Over an 1898 $5 Gold Coin Author’s Note: Mint Error News featured this extraordinary gold quarter on the...
1866 $2 1/2 Liberty Quarter Eagle, Judd-542, Pollock-607, High R.7, PR64 PCGS. CAC

1866 Nickel Quarter Eagle Reopens a 160-Year-Old Mint Mystery

Pattern or Mistake? This 1866 Nickel Quarter Eagle Still Baffles Experts One of the rarest 19th-century U.S. pattern coins asks a deceptively simple question: Did...
World's Greatest Mint Errors by Mike Byers

World’s Greatest Mint Errors Now Available Online

The World’s Most Spectacular Mint Errors Are Now Free to Explore Won NLG Award for Best World Coin Book Mike Byers’ landmark reference brings the world’s...
Philippines: Spanish Colony. Ferdinand VII Mint Error - Double Struck Octavo 1820 M-F MS65 Brown NGC

Unique Double-Struck 1820 Philippines Octavo: A Tiny Manila Copper With a Big Colonial Story

A Tiny 1820 Manila Copper Coin With a Huge Spanish Colonial Story An 1820 Philippines Octavo should not stop traffic. It measures only about 17...

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