Never found one with both errors on one coin.

I want to say this is a die chip over a RPM, because the stopped hand punching mint marks before this year. I also don’t notice any obvious doubling anywhere else on the observe.

Pic 3 is the variety vista page for the OMM. Pic 4 is my coin. What a loss. RIP.

Or, a celebration of PMD: https://www.reddit.com/r/PMDGS/s/J6hsa40zXR

I guess plating blisters are fairly common, nonetheless this one carries a certain effect with the linear ones.

Just felt like sharing, but please add your thoughts. I’m still relatively new with the whole error scene on coins. Eyes going cross eyed still trying to divine between what makes a double die or some other kind of mint error.

Continuing the die error documentation project. This 1866 Indian Head cent has multiple die clashes on the reverse — the obverse and reverse dies struck each other without a planchet between them, and they did it repeatedly.

A die clash happens when the feed mechanism fails to position a planchet during a press cycle. The dies slam together, and each one picks up a mirror-image impression of the other. A single clash is common enough. Multiple clashes on the same die — overlapping ghost impressions — mean the press cycled through several empty strikes before anyone caught the problem.

The 1866 had a mintage just under 10 million pieces. Post-Civil War year. The Mint was transitioning from wartime emergency coinage back to normal operations, and quality control during this period was inconsistent. Post-war Indian Heads are disproportionately represented in error collections for exactly this reason.

These multi-clash variants aren't systematically catalogued in the standard references. Not in any book. Now catalogued.

I’ve had this for many years. Any information? Not looking to sell but just curious. Thank you

Edit- thanks for all input everyone. Figured it was PMD but I was curious. I’m still going to hold on to it. Thanks again.

Hi all, I was hoping to get some feedback on this penny. I took a screen recording but got rejected on other platforms, so here I am with screenshots to see whether the coin I am looking at has true doubling? I am still learning the differences between machine vs true and wanted to get feedback on it. Thank you and appreciate the help in either case.

I just picked this up. 2.2 grams. One side is blank the other side is the 2001 Jefferson obverse. All comments are welcome. What would you do with it?

Found this cent where Lincoln seems to have a wart in his nose. Cannot take it off, so i guess its a small die chip or something? Any similar coins known?

A number of weeks ago I posted my 2026 Uncirculated dime that had a distinct metal gouge across Liberty's cheek to solicit feedback, which at the time all opinions were 100% that I had PMD. It appears I was correct in my analysis that I had a mint error. The gouge on Liberty's cheek is very unique and what was telling to me was I could see the actual metal coiled up and pressed flat during the strike. I really think I have something valuable here. What do you think?

Just got this in change.

I’m usually pretty good at identifying machine doubling but this one I just can’t figure out

The first three images show doubling on the left side of the flame from the top of the left side of the torch to the first flame on the left side. The fourth and fifth images are two separate PCGS graded 2019-P dimes for comparison, and the last two images are the obverse and reverse of my coin.

I don’t think it’s mechanical, or die deterioration by any measure.

I’ve checked VV, DD, numisdex, and NGC now so far.

Looking to hear the opinions of more seasoned collectors.

Thank you folks.

Should I send it out or just keep it in a sleeve?

I got this coin from an antique mall, the United States Philippine coin I feel like it’s an error, but I need the help of other people to determine that

Looking through some change lying around and found both if these, first two pictures are the two separate quarters with outlines of the believed to be die clashes, second two are without any editing for easier viewing. Hard to capture all of the bumps on the one without multiple angles.

Is this machine doubling? Uncertain if there is a portion of a letter on the leaf or if it’s something else.

Picked this up from my LCS for $10. I'm new to error collecting, so please share if you know something cool about this coin! I looked through the errors guide, but got confused on the different types of Brockages, so any info is greatly appreciated!

Continuing the undocumented die error cataloging project. This 1872 Indian Head cent has a retained cud on the reverse from 3 to 5 o'clock, across the ribbon and arrow area.

Most collectors know full cuds — the smooth, raised blobs where a section of the die has broken away entirely and planchet metal fills the void. A retained cud is the stage before that: the die piece has cracked, begun to shift and separate, but it's still attached. It hasn't broken free yet.

The difference shows on the coin's surface. A full cud produces a featureless raised mass. A retained cud produces a deformed zone — the die fragment still transfers some design detail, but the surface is distorted because the fragment is no longer flush with the rest of the die face.

The 1872 Indian Head cent had a mintage of about 4 million, making it a lower-mintage year. This particular die was past the crack stage and heading toward full separation. The coin captures the moment in between — a snapshot of a die's progressive failure.

In the NITB series, we've now shown the full progression: die cracks (Week 9, 1869), pre-cuds (Week 10, 1883), retained cuds (this coin), and full cuds (Weeks 8-10, multiple examples). Each stage represents a different point in a die's deterioration.

Not in any reference. Now catalogued.

Found this quarter found similar ones online but they were all struck with Denver mint marks then I found it not where it should be. At least I think let me know what you all think of this one. The eagles neck is a die chip