1975 No-S Proof Dime — The Rare
🪙 Imagine inheriting a tiny dime that turns out to be worth over $450,000. That’s exactly what happened to three sisters in Ohio who unknowingly held one of the rarest modern U.S. coins ever produced.
In this guide, we explain the legendary 1975 No-S Proof Dime, why it’s so valuable, and how to tell if you might have one.
🎥 Watch the Full Story First (Recommended)
Before reading, watch Coin Teacher’s video below 👇
He shares the real-life story and explains why this coin shocked the numismatic world.
👉 [Embed your YouTube video here]
🪙 The Coin That Shocked the Coin Collecting World
Rare discoveries like this almost never happen. In fact, the last major sale of this coin happened in 2019, when a single 1975 No-S Proof Dime sold for $456,000 at auction.
The three sisters inherited the same rare dime, which had been stored in a bank vault for more than 40 years—completely untouched.
When they finally learned its true value, it changed their lives forever.
🧭 The Incredible Backstory Behind the $450K Dime
Their brother originally purchased the coin in 1978 for $18,200—a huge investment at the time.
But he knew what he was doing.
Fast forward decades later, and that same coin is now valued at $450,000 or more, making it one of the most valuable modern dimes ever discovered.
🔍 What Makes the 1975 No-S Dime So Valuable?
The coin is a 1975 Proof Roosevelt Dime—but with a rare mint error that makes it legendary.
🚫 The Missing Mint Mark Error
Normally, proof coins from 1975 were made in San Francisco and should have a small “S” mint mark.
👉 This rare dime has NO mint mark at all.
That tiny mistake turned a $1 proof coin into a half-million-dollar treasure.
📊 Regular vs. Rare 1975 Proof Dime Comparison
| Type | Mint Mark | Surface | Estimated Value |
|---|---|---|---|
| Regular Proof | “S” under the date | Mirror-like finish | $1 – $5 |
| Rare Error Proof | No mint mark | Mirror-like finish | $450,000+ |
✨ How to Identify a Proof Dime (Important!)
If you’re checking your collection, here’s how to spot a proof dime:
- Proof coins have mirror-like backgrounds
- Designs look frosted and sharp
- Regular circulation dimes look dull and worn
⚠️ Proof coins were never meant to circulate, so finding one without a mint mark would be extremely rare.
💬 A Coin That Changed History
The sisters said their brother always believed in the coin’s future value. He protected it for decades—and his gamble paid off in an unbelievable way.
Today, the 1975 No-S Proof Dime remains one of the most legendary modern U.S. coin errors ever recorded.
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