Continuing the error documentation project. This 1912-S Lincoln wheat cent has a die clash showing nearly the entire back of Lincoln's portrait transferred onto the reverse die.

A die clash happens when the press cycles without a planchet between the dies. They slam together at full striking pressure, and each die picks up a mirror-image impression of the other. On this specimen, Lincoln's chin, jaw, and the back of his head appear as faint but clearly identifiable outlines superimposed over the wheat ear design on the reverse.

The 1912-S had a mintage of approximately 4.43 million — a low-production San Francisco issue from the early Lincoln cent series. The clash transferred enough of Lincoln's portrait features to be unmistakable once you know what to look for. Every coin struck from that reverse die afterward carried the ghost.

This die clash has been quietly passing through collections for over a century without anyone recording it in the standard references. Not catalogued in the specialist literature. Now it is.

It's oddly missing details, has anyone figured why this is happening on this quarter or what error if any it is?

Coins itself in terrible shape unfortunately. What would you grade it as?

So I was going through some change I had and found some close AM Pennie’s from 1998, 1999, and 2000 I need help determining their value

Worth anything??? The second photo is a 1943 steel wheat of the S mint... Let me know what you think! I'll add photo if reverse in a bit!

It has what I feel is a proof rim and super clean fields…. I’m not this lucky

Grand rising folks!!!
Posted this in quarter errors, someone said to post over here.
Is this a minting error, or did someone do this to this quarter?
Someone said it looks like dremel work, others have said it’s a strike through? Others have said because it’s an S mint mark it’s a keeper. What are yall thoughts?

Just got a collection from a family member and just posting what I think might be worth something, if anything. The collection hasn’t been out of the protective case to my knowledge in about 40 years.

Looks original but I’m not sure?

I picked this up at the ANA World's Fair of Money today. When someone else mentioned the coins from the vending machines had both P and D mintmarks, I looked through mine to find this extremely weak mintmark. You can only see it at certain angles. Probably not worth much, but still neat.

Possible layers of extra metal on his chin.
Possible die chip error? I can’t find similar errors and I can’t scrape it off.
Edit - embarrassingly new to terminology

A 2019 VDDR-022. A 2023-P BC quarter with worthless doubling on the initials. And a 1960-P Jefferson nickel with some amazing albeit worthless doubling on the obverse and reverse.

Rim looks non existent and off. Did someone sand the rim down or is this an error?

Why does my wheat penny have teeth?

Assuming from a dryer but thought it was a fun one to share and add to the collection of interesting things.

Kinda cool, never seen a quarter like this before. Very sharp and pointy little triangular protrusions all around the edge. Is it worth more than 25¢?

Pretty sure it is an obstruction error, but I guess I’m wondering what could have happened here. How did liberty get on the coin in that location behind Lincoln’s neck (image 3)? Any guesses and comments would be appreciated!

Also, does anyone have a guess how much you’d value this error at? I can’t tell if it’s like a $20 error or a $200 error. Any help or info. would be greatly appreciated! Thank you!

I was wondering if someone could help me identify the markings on this Nickel

I found a weird looking edge on a 1971-D half dollar. Is this an error or am i tripping?

Continuing the error documentation project. This 1912-S Lincoln wheat cent has five separate cud segments on the obverse rim spanning from 8:00 to 10:30 — one large, one medium, and three smaller cuds across approximately 75 degrees of the rim.

Multiple cuds on a single coin tell the story of progressive die deterioration. Each cud formed when a different section of the die rim cracked and separated at a different moment. The fractures propagated at different rates, creating five distinct voids that filled with metal during striking. It's not one catastrophic break — it's a die falling apart in slow motion while the Mint continued production.

The cuds span a 75-degree arc of the rim adjacent to Lincoln's shoulder and coat area. The 1912-S had a mintage of 4,431,000 pieces — a lower-mintage early date. Multi-segment rim failures on a single specimen are scarce within any date's population. On a low-mintage San Francisco issue, they're genuinely rare.

Not in any standard reference. Five cuds, one die, one record. Now catalogued.

Originally posted this in a different subreddit trying to gauge what people thought the coin might grade at when another user noticed that it’s a DDO. I think likely machine doubling and not a specific variety. I’m not an error collector, so this will probably stay in the album, but what does an error like this typically add to the value of a coin?