On October 28, 2024, a rare 1975 No-S Proof Dime astonished collectors and investors by selling for a remarkable $506,250 at a Great Collections auction. This rare coin has a storied past, remaining with the same family since 1978, and is one of only two known examples. The impressive price has highlighted the continued fascination with rare U.S. coins and set a new auction record.
The Appeal of the 1975 No-S Proof Dime
The 1975 No-S Proof Dime’s extraordinary value lies in its unique history and rarity. This coin was mistakenly released without the “S” mint mark, typically indicating it was struck at the San Francisco Mint.
For collectors, a mint error such as this is exceptionally rare and highly desirable. The Great Collections auction attracted a staggering 200 bids, showcasing the coin’s appeal to collectors and investors worldwide.
| Feature | Description |
|---|---|
| Coin Name | 1975 No-S Proof Dime |
| Auction Date | October 28, 2025 |
| 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) Approval |
Why Was This Coin So Valuable?
This coin’s allure comes from its historical significance and rarity. The 1975 No-S Proof Dime’s “missing mint mark” error set it apart as a unique piece in U.S. coinage. Coins like these are typically graded by the Professional Coin Grading Services (PCGS), which gave this particular specimen a Proof-67 grade.
Further, it received certification from the Certified Acceptance Corporation (CAC), ensuring its authenticity and quality, making it even more appealing to buyers.
A Record-Breaking Auction
The 1975 No-S Proof Dime achieved an all-time high price at auction, nearly thirty times the amount its previous owners paid in 1978. Originally purchased for $18,200 by a collector from Ohio and his mother, the coin had remained in their family’s possession for almost half a century.
The record-breaking price is a testament to the growing interest in rare coins and the appreciation in their value over time.
The Journey of This Rare Dime
After purchasing the dime in 1978, the Ohio family carefully safeguarded the coin for nearly five decades. In August 2025, they entrusted it to Great Collections, leading to the highly anticipated October auction.
The coin’s appearance on the market sparked international interest, with bids coming from collectors in Japan, Germany, and the United Kingdom.
Why Modern Rarities Continue to Fascinate Collectors
The 1975 No-S Proof Dime exemplifies how modern rarities captivate collectors. Rare coins, particularly those with unique features like mint errors, hold significant appeal due to their historical significance and investment potential.
The increased interest in this coin reflects broader trends in collectible markets, where scarcity and certification drive prices to record highs.
FAQs
Why is the 1975 No-S Proof Dime so valuable?
The 1975 No-S Proof Dime is valuable due to its rarity as one of only two known examples, along with its unique minting error of missing the “S” mint mark.
What grading did this dime receive?
This coin was graded as PCGS Proof-67 and received CAC certification, affirming its quality and authenticity.
How much did the original owner pay for the coin in 1978?
The Ohio-based collector and his mother bought the coin in 1978 for $18,200.
What drove the record-breaking price of $506,250?
The combination of the coin’s rarity, high-quality grading, historical significance, and international interest drove the price to over half a million dollars.
Where can collectors find similar rare coins?
Collectors can look for similar rarities at reputable auction houses like Great Collections and should consider certified coins for guaranteed authenticity and quality.
