Sometimes, coins that were never meant to see the light of day end up becoming some of the most valuable treasures in the world. Whether they were test strikes, transition errors, or unauthorized releases, a few dimes intended for destruction have survived—and today, they’re worth a fortune. These coins defied the odds, slipped past the mint’s strict protocols, and made it into private hands. Now collectors scramble to own these ultra-rare mistakes that were never supposed to exist.
Below are three rare dimes that were destined to be destroyed, but instead became priceless rarities.
1. 1975 No S Roosevelt Dime
The 1975 No S Proof Roosevelt Dime is one of the most mysterious coins in American history. This proof coin was produced at the San Francisco Mint, where all such coins should carry the “S” mintmark. However, a few escaped without it—likely due to a test die that was never meant to be used. Only two examples are known to exist today, and both were intended for destruction. One of these coins sold at auction for over $450,000, making it one of the most valuable dimes ever struck.
2. 1964-D Roosevelt Dime Over-Struck on a Cent Planchet
This coin is a fascinating example of a major minting blunder. Instead of being struck on a dime-sized blank, it was struck on a copper cent planchet. These types of wrong planchet errors are usually caught and destroyed during the minting process, but this one survived. The dime’s design appears over a smaller copper base, creating a dramatic off-metal look. Because it was never meant to be released and is visually striking, collectors value it highly. Depending on condition, this error can sell for $5,000 to $10,000.
3. 1999 Roosevelt Dime Struck on Experimental Planchet
During the late 1990s, the U.S. Mint experimented with different coin compositions for vending machine compatibility and cost-efficiency. Some of these test coins—never intended for circulation—were accidentally released. A few 1999 Roosevelt Dimes struck on experimental planchets, such as those with a golden tint or unusual weight, made it out. These coins were meant to be destroyed after testing, but their escape turned them into rare collectibles. Depending on the type and confirmation by grading services, they can fetch $3,000 to $7,500 at auction.
Coins intended for destruction aren’t supposed to exist—but when they do, they become legends in the numismatic world. These dimes, from test strikes to off-metal errors, were never meant for circulation. Yet, they escaped into the wild, and now collectors treat them as priceless artifacts. If you happen to stumble upon one of these error coins, you could be holding a piece of history—and a small fortune in your hand.
FAQ’s:
1. Why were these dimes meant to be destroyed?
They were either test strikes, minting errors, or struck on incorrect planchets that failed quality control standards.
2. How do these coins survive if they were supposed to be destroyed?
In most cases, they slipped past quality inspection or were accidentally included in regular coin rolls and sets.
3. Are coins struck on the wrong planchet common?
No, they are rare because the mint has strict error-detection protocols. When they do appear, they’re highly collectible.
4. Can these coins still be found in circulation?
Very unlikely, but not impossible. Most are discovered in proof sets, rolls, or old coin collections.
5. Should I get a suspicious coin authenticated?
Yes, always consult with professional graders like PCGS or NGC. Certification confirms value and authenticity.
