On October 28, 2024, something amazing happened in the world of coin collecting. A 1975 No-S Proof Dime sold for an incredible $506,250 at an auction held by Great Collections. This special coin is so rare that only two of its kind are known to exist, and it had been with the same family since 1978. The auction set a new record for the price of rare U.S. coins, showing just how much people love collecting unique and historical items.
The Unique History of the 1975 No-S Proof Dime
The story of the 1975 No-S Proof Dime is fascinating. What makes this coin so valuable is its unusual history and extreme rarity. Normally, coins produced at the San Francisco Mint have an “S” mint mark on them, but this particular dime was mistakenly released without it. Collectors refer to these kinds of mistakes as mint errors, and they are especially sought after. The auction attracted a massive 200 bids, indicating the strong interest from collectors and investors all over the world.
Auction Details
| Feature | Description |
|---|---|
| Coin Name | 1975 No-S Proof Dime |
| Auction Date | October 28, 2024 |
| Auction House | Great Collections |
| Final Auction Price | $506,250 |
| Total Bids Received | 200 |
| Original Purchase Price (1978) | $18,200 |
| Grading | PCGS Proof-67 |
| Certification | Certified Acceptance Corporation (CAC) |
What Makes This Coin So Special?
The value of the 1975 No-S Proof Dime comes from its historical significance and unique characteristics. The missing “S” mint mark makes it a standout piece in U.S. coinage. When grading coins, professionals use a system called the Professional Coin Grading Services (PCGS). This coin was given a high grade of Proof-67, which means it’s in excellent condition. It also received approval from the Certified Acceptance Corporation (CAC), ensuring its quality and authenticity, which makes it even more appealing to buyers.
Breaking Records at Auction
The 1975 No-S Proof Dime’s final auction price was remarkable. It sold for nearly thirty times the amount the family originally paid for it in 1978. The coin was purchased for $18,200 by a collector from Ohio and his mother. For almost fifty years, it stayed safely with them until it was auctioned off. This high price highlights the growing interest in rare coins and how their value can increase over time.
The Journey of This Rare Dime
After being bought in 1978, the family took great care of the coin for nearly five decades. In August 2025, they decided to sell it through Great Collections, leading to the exciting auction in October. When it hit the market, collectors from around the world, including Japan, Germany, and the United Kingdom, eagerly placed bids.
Why Modern Rarities Attract Collectors
The story of the 1975 No-S Proof Dime is a perfect example of why collectors are fascinated by modern rarities. Coins that are rare, especially those with unique features like mint errors, are highly sought after. They are not just pieces of currency; they are also historical artifacts that can be seen as investments. The rising interest in this coin reflects a broader trend in the collectible market, where scarcity and expert certification drive prices to new heights.
Conclusion
The sale of the 1975 No-S Proof Dime for over $500,000 is a remarkable event in the world of coin collecting. This coin’s unique history and rarity have captured the attention of collectors and investors alike. It serves as a reminder of how much value can be found in the unexpected and how passion for collecting can turn everyday items into valuable treasures. As more people become interested in rare coins, stories like this one inspire future collectors to seek out their own hidden gems.
FAQ’s
What is a No-S Proof Dime?
A No-S Proof Dime is a rare coin from 1975 that was mistakenly released without the “S” mint mark, which usually indicates it was made at the San Francisco Mint. This mint error makes it highly valuable among collectors.
Why did the 1975 No-S Proof Dime sell for over $500,000?
The 1975 No-S Proof Dime sold for over $500,000 due to its extreme rarity, unique mint error, and high grading of Proof-67 by the Professional Coin Grading Services (PCGS), making it highly desirable to collectors and investors.
How many 1975 No-S Proof Dimes are known to exist?
Only two known examples of the 1975 No-S Proof Dime exist, making it one of the rarest dimes in U.S. coinage. This scarcity significantly contributes to its high value in the collector market.