That’s exactly what happened when a collector noticed something odd in a regular proof set — a dime missing its “S” mint mark!
Let’s explore how to spot this valuable error and why you should check every 1983 proof set you can find.
What Makes This Dime So Special?
In 1983, the U.S. Mint produced proof sets — high-quality coins with mirror-like finishes made using highly polished dies. These coins were never meant for circulation and were minted at San Francisco, identified by the “S” mint mark.
But here’s the catch:
A few 1983 proof dimes were accidentally struck without the “S” mint mark — a major minting error that collectors are paying thousands for today!
How to Identify the 1983 “No-S” Proof Dime
Here’s how to tell if you might have one:
- Look for Proof Features:
Proof dimes have a shiny, mirror-like background with frosted details.
You’ll see deep reflections, especially around Roosevelt’s face and lettering. - Check for the Mint Mark:
Every normal 1983-S proof dime should have an “S” under Roosevelt’s neck (right above the date).
If that mint mark is missing, you’ve just found something extremely special! - Confirm It’s From a Proof Set:
These coins originally came sealed in U.S. Mint proof sets. If yours is still in the original plastic holder, even better — collectors love that!
Real-World Values of the 1983 “No-S” Proof Dime
| Condition / Description | Estimated Value |
|---|---|
| Normal 1983-S Proof Dime | $2 – $3 |
| “No-S” Proof Dime (raw) | $700 – $1,000 |
| Certified “No-S” Proof Dime (PCGS MS-graded) | Up to $5,500+ |
Example: A 1983 proof set containing a “No-S” dime recently sold for $700 online — still sealed in its original U.S. Mint packaging!
Why the Missing “S” Is a Big Deal
It might seem minor, but that tiny missing letter represents a major Mint error.
Normally, all San Francisco proof coins carry the “S.” When a die without the mint mark was accidentally used, it created one of the most famous modern proof errors.
Collectors prize this variety because it’s:
- Rare
- Visually obvious (easy to spot!)
- Historically significant
How to Authenticate and Grade Your Coin
Before you rush to sell, get it professionally certified — it makes a huge difference in price!
Recommended Services:
Important:
Never clean your coin! Cleaning destroys the surface and drastically lowers its value.
If PCGS or NGC confirms it as a genuine “No-S” 1983 Proof Dime, you’re looking at a multi-thousand-dollar find.
Final Thoughts — Check Every 1983 Proof Set!
The Coin Professor was absolutely right:
A simple glance at your old proof set could uncover a fortune.
Mirror finish? Check.
1983 date? Check.
No “S” mint mark? Jackpot!
So next time you come across a 1983 proof set at a coin show, estate sale, or online auction… take a closer look — you might just find a $5,000 treasure hiding in plain sight!
Related Reads:
