The 4 Biggest Mistakes People Make With an Inherited Coin Collection
Inheriting a coin collection puts most people in an uncomfortable spot. You're not a collector. You didn't ask for this. And you have no idea what you're supposed to do next.
That uncertainty leads to mistakes — and some of them are expensive. I've seen people lose hundreds, sometimes thousands of dollars simply because they didn't know what to avoid.
Here are the four most common ones.
Mistake #1: Cleaning the Coins
This is the big one. I'd guess it's the single most costly mistake inheritors make.
It feels completely logical. Old coins look dirty. Dirty things get cleaned. But in the coin world, cleaning is a four-letter word.
Even a gentle wipe with a cloth can leave tiny scratches that permanently reduce a coin's value. Collectors and dealers can spot a cleaned coin almost immediately — and a coin that might have been worth $200 in original condition could be worth $30 once it's been cleaned.
The rule is simple: never clean a coin. Not with water. Not with soap. Not with a cloth. Not with anything. Leave them exactly as they are.
Mistake #2: Selling Too Fast
I completely understand the impulse to just get it done. But selling too quickly is almost always a mistake.
The person who walks into a coin shop with a box of coins they know nothing about is at a serious disadvantage. Without doing any research first, you have no way to know if an offer is fair — or if you're leaving serious money on the table.
Before you sell anything, spend a little time learning what you have. Check eBay sold listings. Look up a few of the older coins. Read through my full guide on what to do when you inherit a coin collection — it walks you through the process step by step.
A few days of research can make a real difference to what you walk away with.
Before you sell a single coin — read this.
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Mistake #3: Ignoring the Silver
This one surprises people. Silver coins don't look special. Many of them are worn and dull, and they look just like any other old coin.
But here's the thing — any U.S. dime, quarter, or half dollar dated 1964 or earlier is made of 90% silver. At today's silver prices, even a worn, ugly dime from 1963 is worth several times its face value. Kennedy half dollars from 1965 to 1970 are 40% silver too, and they get overlooked all the time.
Before you do anything with your collection, go through it and pull out every coin dated 1964 or earlier. Even if you sell everything else for nothing, those silver coins alone could be worth real money.
Mistake #4: Accepting the First Offer
Whether you're talking to a coin shop, a dealer at a show, or someone on Facebook Marketplace — the first offer is rarely the best offer.
Dealers buy coins to resell them. That means they need to offer you less than market value so they can make a profit. That's not dishonest — it's just how the business works. But it does mean you should always get multiple opinions before you accept anything.
Get at least two or three offers before you commit. And when you're ready to sell, my guide on how to sell coins without getting ripped off will walk you through exactly how to do it the right way.
The Bottom Line
Inheriting coins doesn't have to be stressful. You just need to slow down, avoid these four mistakes, and take it one step at a time.
You've got this.
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August Keene is the founder of Numisteria, a coin collecting blog built for beginners. He learned the hard way so you don't have to.
