Funky Mint Mark or Fantastic Find? How to Spot Rare Coin Errors Like a Pro

Most people walk right past the tiny details that can transform a pocket-change coin into a treasure with serious numismatic value. I’ve spent countless hours hunched over a workbench with a loupe in one hand, a microscope nearby, and a healthy dose of skepticism in my gut. In this edition of the Variety & Error Guide, we’re exploring the strange world of funky mint marks, die cracks, and double dies. The forum question that kicked this off was deceptively simple: “Is this a P over, and to the right of, an S?” The answer, as you’ll see, is a masterclass in why collectors must learn to separate genuine errors from die deterioration, strike issues, and plain wishful thinking.

The “Funky” Mint Mark Mystery: A Case Study in Caution

A forum user once posted a blurry close-up of a mint mark and asked if it showed a “P over S” on what turned out to be a 1979 Susan B. Anthony dollar. The responses were polite but pointed. One member wrote, “You’ll get better opinions with an in-focus image.” Another asked for the full coin and denomination—standard practice for any serious error identification.

Here’s the hard truth I’ve learned from years in the trenches: Most “funky” mint marks aren’t errors at all. They’re the result of a weak strike, die wear, or simply the limits of a low-resolution camera. As one forum veteran put it, “Unless it’s really wide separation with good definition of the under mm, it’s going to take well zoomed pics to tell via a photo.” This is the first rule of error hunting: if you can’t see it clearly, you can’t authenticate it.

“I just see scattered blobs and some of them make the P.” — A stark reminder that our brains are wired to see patterns, even when none exist.

The Importance of Full Coin Photos

When you spot a potential error, never rely on a single close-up. You need full coin photos—obverse and reverse—to rule out post-mint damage, counterfeiting, or environmental damage that can mimic a rare variety. The forum’s insistence on this point isn’t just formality; it’s the foundation of numismatic due diligence. A genuine error will have consistent, logical characteristics that fit within known die varieties. And when you do find one, remember that preservation matters: a coin in true mint condition with original luster and eye appeal will always outshine a heavily handled example.Related Resources

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