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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...
Famous 1859 Quarter Eagle Gold Die Trial Rejected as Counterfeit
A Famous Gold Rarity Fooled Collectors for More Than 60 Years
A mysterious gold striking once ranked among the most intriguing experimental pieces linked to...
The 1910 Lincoln Cent With No Reverse and the Debate That Changed Its Story
The Unique 1910 Lincoln Cent Uniface Die Trial: The Full Story
PCGS called it a uniface test strike. Mike Diamond argued that it looked like...
The 1938-D/S Buffalo Nickel Should Not Exist: Here Is How It Happened
1938-D/S Buffalo Nickel: History, Varieties and Value
The 1938-D/S Buffalo Nickel presents an immediate mystery. The United States Mint struck no Buffalo Nickels at San...
1875 Indian Head Cent: The Intentional Variety That Turned Coinage Into Evidence
On some 1875 Indian Head cents, a small but unmistakable raised dot appears on the reverse. The dot sits near the upper-left corner of...
The Mint’s Impossible $1.25 Coin Set a $194,000 Record
The $1.25 Coin: How the U.S. Mint Created Its Most Famous Modern Mule Error
In May 2000, Arkansas collector Frank Wallis opened a roll of...
1942/1 Mercury Dime: The Wartime Mint Mistake That Put Two Years on One Coin
How a Wartime Mint Mix-Up Created a $120,000 Dime
A single dime can tell a surprisingly large story.
The 1942/1 Mercury dime carries two dates. It...
The 1989-D Congress Dollar Error That Turned the U.S. Mint Upside Down
The Congress Silver Dollar That Escaped the U.S. Mint With a 180-Degree Error
A dramatic 180-degree die rotation transformed an overlooked modern commemorative into one...
1968 No S Roosevelt Dime: The Tiny Proof Set Mistake That Created a Modern...
,A Missing “S” Turned This 1968 Proof Dime Into a $22,800 Modern Rarity
In 1968, the United States Mint sought to restore order to American...
1971 “No S” Proof Jefferson Nickel: The Only Missing Mintmark in the Series
The 1971 No S Error - 1,655 examples - Check your Proof Sets!
The 1971 “No S” Proof Jefferson Nickel (FS-501) ranks among the most...
Two-Headed Canada Cent Error Turns Queen Elizabeth II Into the Whole Story
The Canadian Cent Mint Error That Put Queen Elizabeth II on Both Sides
A No-Date Canadian Cent With a Dramatic Minting Accident
“Two heads are better...
PCGS Certifies Unique 2022-D Wilma Mankiller Quarter Struck on a Nickel Planchet
A Modern U.S. Mint Error With a 90-Year Backstory
A dramatic modern mint error has surfaced in the American Women Quarters Program. PCGS has certified...
