The 1970-S No S Proof Roosevelt Dime is one of the most intriguing finds for coin collectors. Its rarity, coupled with an unusual backstory, makes it a sought-after treasure. This unique proof coin was mistakenly minted without the iconic “S” mint mark, which typically signifies its origin from the San Francisco Mint. Remarkably, some of these coins have ended up in general circulation, creating the exciting possibility of discovering a dime worth as much as $1,300.
In this article, we’ll dive into the fascinating details of this coin, from its defining features and rarity to how you can identify it. Learn why this dime is so valuable and why it continues to captivate coin enthusiasts even decades later.
Overview of the 1970-S No S Proof Roosevelt Dime
| Feature | Details |
|---|---|
| Year | 1970 |
| Mint Location | San Francisco |
| Mint Mark | None (missing “S”) |
| Composition | 75% copper, 25% nickel over a pure copper core |
| Diameter | 17.9 millimeters |
| Edge | Reeded |
| Finish | Proof with mirror-like brilliance |
| Estimated Quantity | Approximately 2,000 coins |
| Value Range | $500 to $1,300 (condition-dependent) |
The Error That Created a Collectible
First minted in 1946, the Roosevelt Dime commemorates President Franklin D. Roosevelt’s legacy, particularly his support of the March of Dimes campaign. Proof versions of this dime are distinguished by their superior quality, featuring a shiny, mirror-like finish and sharp details. Typically, proof coins from the San Francisco Mint carry the “S” mint mark.
However, in 1970, an oversight led to the creation of proof dimes without the “S” mark. These rare coins were unintentionally included in proof sets distributed to collectors. Over time, some of these sets were broken up, and the dimes eventually found their way into circulation.
Key Characteristics of the 1970-S No S Proof Dime
If you think you’ve stumbled upon this rare coin, here’s what to look for:
- Missing Mint Mark
Check the obverse (front) side of the coin above the date. The absence of the “S” mint mark is the defining feature of this error. - Proof Finish
Unlike regular circulation coins, this dime boasts a reflective, mirror-like surface and finely detailed craftsmanship. - Rarity
With an estimated production of only 2,000 coins, the 1970-S No S Proof Dime is among the rarest U.S. dimes ever produced.
How These Coins Entered Circulation
Despite being crafted as collector items, some 1970-S No S Proof Dimes found their way into general circulation. This unexpected release can be attributed to:
- Lack of Awareness
Original owners or their heirs may not have recognized the coin’s value and spent it as regular change. - Estate Sales and Auctions
Rare coins often get unintentionally sold or mixed with everyday items during estate liquidations.
This accidental dispersal means a rare coin could still turn up in your pocket change today.
Verifying the 1970-S No S Proof Dime
To confirm whether you’ve discovered this valuable coin, follow these steps:
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- Examine the Mint Mark
Look above the date. If no “S” mark is present, you may have a rarity. - Inspect the Finish
Proof coins are distinct for their reflective surfaces and crisp details. - Verify the Date
Ensure the coin is dated 1970, as this error only occurred that year. - Seek Professional Authentication
Send your coin to a grading service such as PCGS or NGC for verification and grading.
Grading and Value
The condition and grade of the 1970-S No S Proof Roosevelt Dime significantly influence its value. Below are approximate valuations:
| Grade | Description | Estimated Value (USD) |
|---|---|---|
| PR65 | Gem Proof | $500 – $700 |
| PR66 | Choice Gem Proof | $700 – $900 |
| PR67 | Superb Gem Proof | $900 – $1,100 |
| PR68 | Near Perfect Proof | $1,100 – $1,300 |
| PR69 | Virtually Flawless Proof | Over $1,300 |
Similar “No S” Proof Coins
The 1970-S No S Proof Dime is part of a small but notable group of similar errors:
- 1968 No S Proof Dime
Extremely rare, with fewer than 20 known to exist. - 1975 No S Proof Dime
Another significant collectible error. - 1983 No S Proof Dime
A more recent example that continues the legacy of these unique minting errors.
Tips for Collectors
Whether you’re a novice or seasoned collector, consider these tips:
- Check Proof Sets
Inspect 1970 proof sets for dimes without the “S” mint mark. - Examine Change Regularly
You never know when a rare coin could turn up. - Authenticate Finds
Always verify suspected rare coins with professional grading services. - Monitor Auctions
Keep an eye on online auctions for authenticated examples of the 1970-S No S Proof Dime.
Conclusion
The 1970-S No S Proof Roosevelt Dime is a fascinating piece of numismatic history. Its rarity and the chance to find one in circulation make it a captivating treasure for collectors. If you’re lucky enough to uncover one, you may be holding a coin worth over $1,300.
Have you ever found a rare coin in your change? Share your story and continue exploring the world of numismatic treasures. Happy hunting!