🎥 Watch the Full Story Below!
Before diving into the incredible backstory, make sure to watch Coin Teacher’s video about this once-in-a-lifetime coin find — something that hasn’t happened since 2019!
👉 [Watch the Video Now] (insert YouTube link or embed code here)
🪙 The Coin That Shocked the Coin World
Something like this hasn’t happened in years — literally not since 2019, when a single 1975 No-S Proof Dime sold at auction for a jaw-dropping $456,000! 😲
Three sisters from Ohio inherited that same dime and had no idea what they were sitting on. It stayed locked in a bank vault for over 40 years, completely untouched.
When they finally learned its true value… their lives changed forever.
🧭 The Story Behind the $450,000 Dime
The sisters’ brother originally purchased the coin back in 1978 for $18,200 — already a significant amount at the time. But here’s the twist:
He knew exactly what he was doing.
Fast forward to today — that same dime is now estimated at a minimum of $450,000, and when it last sold, it brought $456,000 at auction. 💰
🔍 What Makes It So Valuable?
The coin in question is a 1975 Proof Roosevelt Dime, but with a very specific error:
🚫 Missing the Mint Mark!
Normally, 1975 proof coins minted in San Francisco should show a small “S” mint mark. But this ultra-rare variety doesn’t have it at all — making it one of the most famous proof errors in U.S. coin history.
Here’s how to spot the difference:
| Type | Mint Mark | Surface | Value |
|---|---|---|---|
| Regular Proof | “S” under the date | Mirror-like | $1–$5 |
| Error Proof | No “S” mint mark | Mirror-like | $450,000+ |
🧠 How to Tell a Proof Dime from a Regular Dime
If you’re checking your coins, remember:
✨ Proof dimes are specially made for collectors — they have a mirror-like surface and frosted details.
🪙 Regular dimes from circulation look duller, with no mirrored shine.
Proof coins were never meant to end up in pocket change — so if you ever see one without a mint mark, it could be a once-in-a-lifetime discovery.
💬 A Coin That Made History
The three sisters who inherited this dime said their brother always believed in its value. He protected it for decades — and in the end, his investment paid off in an unbelievable way.
“He knew exactly what he was doing,” one sister shared.
Today, this coin remains one of the most valuable modern U.S. dimes ever found.
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