Written by the Treasureguide for the exclusive use of the Treasure Beaches Report.
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I recommend checking you coin finds, even the modern clad. They can be worth a lot if there are good mint errors.
One type of error to look for are strikethroughs. I've found a few of those in my own coins. They are the best or the most valuable, but I find them interesting.
Here is an excerpt from a great web site on strike-though errors. The site explains strike-through errors. And it also tells very clearly what you need to know in order to evaluate any errors you find and if they are significant enough to have graded. Overall, its a great web site about strikethrough error coins.
Here is a brief excerpt.
Strike through errors occur when foreign material gets caught between the coin die and planchet during striking, creating unique and often valuable mint errors. However, not every strike through error justifies the $30-150+ cost of professional grading. Understanding which strike through errors command collector premiums and which ones are too minor to grade profitably separates smart error coin collectors from those wasting grading fees on common manufacturing defects.
Before submitting any error coin for professional certification, using AI pre-assessment helps verify the coin's base grade and condition, ensuring the strike through error is dramatic enough to justify grading costs and deliver positive return on investment.
What Are Strike Through Errors?Strike through errors happen when the coin die strikes through an object positioned between the die and planchet. This foreign material prevents the die's design from fully transferring to the coin, leaving distinctive marks, depressions, or missing design elements....
And here is the link if you want to learn more.
Strike Through Errors on Coins: Should You Submit for Grading? 2025 Guide | CoinGrader AI
Here is probably the best strike-through error I've found.
This is not post-mint damage. With careful examination under magnification you can tell the difference.
Here is another that will help me explain.
This one is not so obvious, and to the naked eye it looks like a scratch on the coin.
It is not a die crack either.
If it was a post mint scratch, you would see metal flow and a rim along the edge of the indentation. The indentation was pressed into the coin because something, maybe a wire, was on the planchet when the die hit it.
I enjoy looking for error coins although it is tedious and it might take a good while to finally find one. If you read the coin community forum, you'll see that people often think they have a mint error when they actually have a coin with post-mint damage. I'm not very good at it, but you can submit your pictures to the coin community forum and get the verdict from the experts. That is how I've learned what I know about it.
Collecting for error and variety coins will open up a whole new dimension to your metal detecting and coin shooting. It takes time to learn to identify true error coins. It isn't easy and takes a while. Give it a try.
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| Surf Chart from Surfguru.com. |
Nothing exciting in the chart.
We are getting some nice negative low tides in the afternoon.
Good hunting,
Treasureguide@comcast.net