The 1970-S No S Proof Roosevelt Dime: The 1970-S No S Proof Roosevelt Dime is one of the most exciting finds in coin collecting, blending rarity with an intriguing backstory. Created by accident due to a minting oversight, this proof coin was released without the signature “S” mint mark typically signifying its origin at the San Francisco Mint. What makes it even more remarkable is that a few of these coins have made their way into everyday circulation, offering collectors a chance to stumble upon a potential treasure worth up to $1,300.

This article uncovers the details of this fascinating coin, its features, and the reasons behind its rarity. You’ll learn how to identify it, why it holds such high value, and how it continues to intrigue collectors decades after its creation.

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 a mirror-like surface and crisp details
Estimated Quantity	Approximately 2,000 coins
Value Range	$500 to $1,300, depending on condition

The Story Behind the Error

The Roosevelt Dime, first minted in 1946, honors President Franklin D. Roosevelt and his dedication to public health, particularly through his support of the March of Dimes. Proof versions of the dime, crafted specifically for collectors, are known for their high-quality mirror-like finish and sharp details. These coins typically bear a mint mark indicating where they were produced, with proof coins from 1970 carrying the “S” mark for the San Francisco Mint.

However, in an unusual turn of events, a small number of these dimes were minted without the “S” mark in 1970. This oversight created a rarity that collectors value immensely. These dimes were included in proof sets distributed to collectors, but over time, some ended up in general circulation.

Key Features of the 1970-S No S Proof Roosevelt Dime

To identify this unique error coin, look for the following characteristics:

1. Missing Mint Mark
   • The absence of the “S” mint mark above the date on the obverse side is the hallmark of this rare dime.
2. Proof Finish
   • Unlike standard circulation coins, the dime has a brilliant, mirror-like surface and precise details.
3. Rarity
   • Only about 2,000 of these coins are believed to have been produced, making them one of the rarest U.S. dimes in existence.

Why Are They Found in Circulation?

The 1970-S No S Proof Roosevelt Dime was never intended for circulation. However, some of these coins have surprisingly found their way into the pockets of unsuspecting individuals. This can be attributed to:

1. Lack of Awareness
   Some original owners or their heirs may not have recognized the coin’s rarity and spent it as ordinary currency.
2. Estate Sales and Liquidations
   Rare coins often get mixed in with other items during estate sales or liquidations, leading to their unintentional release into circulation.

This means the next time you check your change, you could unknowingly be holding one of these valuable dimes.

How to Identify the 1970-S No S Proof Roosevelt Dime

If you think you’ve found one of these rare dimes, here’s how to confirm its authenticity:

1. Examine the Mint Mark
   • Look above the date on the obverse side. If the “S” mint mark is missing, you may have struck gold—or in this case, copper and nickel.
2. Inspect the Finish
   • Proof coins have a highly reflective surface and sharply defined details. A mirror-like finish is a key indicator.
3. Verify the Date
   • Ensure the coin is dated 1970. Only dimes from this year are part of this specific minting error.
4. Seek Professional Authentication
   • If you believe your dime is the rare 1970-S No S Proof, consult a professional grading service or numismatist to verify and grade its condition.

Grading and Value of the Coin

The value of the 1970-S No S Proof Roosevelt Dime depends heavily on its grade, which reflects its condition and quality. Below are estimated values based on grading:

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

Note: These values are approximate and may vary based on current market trends.

Other “No S” Proof Coins

The 1970-S No S Proof Roosevelt Dime is part of a small group of similar errors. Other “No S” proof coins include:

1. 1968 No S Proof Dime
   Extremely rare, with only about a dozen known to exist.
2. 1975 No S Proof Dime
   Another significant error coin, also highly sought after by collectors.
3. 1983 No S Proof Dime
   A more modern example of the minting error, continuing the legacy of “No S” proof coins.

Tips for Aspiring Collectors

Whether you’re new to coin collecting or a seasoned enthusiast, here are some tips to enhance your search:

1. Inspect Proof Sets
   • Examine 1970 proof sets carefully. Missing the “S” mint mark on the dime could signal a significant find.
2. Check Loose Change
   • Regularly inspect dimes in your change, particularly those with a reflective, proof-like appearance.
3. Consult Experts
   • If you suspect you’ve found a 1970-S No S Proof Roosevelt Dime, have it authenticated by a professional grading service like PCGS or NGC.
4. Keep an Eye on Auctions
   • Online platforms and auctions often feature these rare coins, giving collectors a chance to purchase verified examples.

Final Thoughts on the 1970-S No S Proof Roosevelt Dime

The 1970-S No S Proof Roosevelt Dime is more than just an error coin; it’s a testament to the fascinating world of coin collecting. Its rarity, combined with the chance of still finding one in circulation, makes it a thrilling pursuit for collectors. If you’re fortunate enough to come across one, you could be holding a piece of history worth over $1,300.

Have you ever found a rare coin in your change? Share your story in the comments below, and don’t forget to check out our other articles on hidden numismatic treasures. Happy hunting!