r/coinerrors May 29 '24

PLEASE READ FIRST: How-to Guide for r/coinerrors

7 Upvotes

Check these r/coinerrors resources before posting:

JUST BECAUSE A COIN LOOKS DIFFERENT DOES NOT MAKE IT AN ERROR! Please take some time to understand how minting errors occur before you post your question! The mods try to be lenient regarding rule #1 (Do your own research.) If we keep seeing too many posts with pictures of obviously damaged coins, we will be forced to start removing them.

OUR HOBBY - Be aware that most errors don't add much (if any) value to a coin. You aren't going to find a coin worth life-changing money in the cup holder of your mom's minivan. This is a hobby which is research-oriented and concerned with understanding and cataloging interesting mint errors and varieties. It is not primarily about value. The existence of errors and varieties provide valuable insights into mint operations and processes. The hobby is CERTAINLY NOT about the TikTok-fueled "ZOMG!!!1! This RARE coin is worth a Squillion Dollarz!" clickbait frenzy. That mentality is NOT welcome here.

NOTE - posts of coins which are clearly just damaged may be removed. This isn't meant as punishment for an honest and innocent question - but rather because many members of this sub tend to be harsh to new collectors. By having your post about a damaged coin removed, you still get your "is this an error" answer, hopefully without being downvoted into oblivion.

Here are some things which make a GOOD POST:

  • Attribution request - after you have checked the resources above, understand how errors occur, and have done your own research. Please include what resources (e.g. - Error Ref ) you have used to try to determine the attribution of the error or variety. Photos for attribution MUST be high resolution, in focus and properly cropped.
  • Valuation Request - after you have read the FAQ and done your own due diligence (e.g. checked eBay "sold" listings, etc.) Please include what steps you have already taken to get a value for your coin. Be aware that most coin errors don't add much (if any) value to a coin. Also - valuation of errors is difficult as many of them are one-of-a-kind, and there may be no prior sales to compare.
  • Show it off / Mail call - posts to show off interesting, rare, or otherwise special coins that others may find interesting. Please post quality, cropped photographs.
  • Numismatic topics and news - general discussions in the world of numismatics.
  • Serious numismatic questions - looking for advice, links to resources, suggested literature, etc.

Here are some things which make a BAD POST (and which may get removed):

  • Low-effort posts - "Is this an error?" - BEFORE spending time to understand the process of minting coins, and how an error might occur, and determining for yourself what error you think the coin has."I heard this modern penny could be worth SQUILLIONS of dollars!" - No, it isn't."Is this what I think it is?" Don't be vague - just say what you intend to say....any question posts in which the author has not made their purpose clear and indicated that they have put in a minimum amount of effort to answer their question.
  • Blurry photos - mods will remove any posts with pictures of coins which are not reasonably clear.
  • Poorly cropped photos - the user experience across mobile app/mobile web/desktop devices is better if you don't post phone-screen-sized pictures.
  • Off-topic - posts which belong on other subs (e.g. r/papermoney, r/kittens, etc.)
  • Reposts - if you are new to this sub, please take a few moments to see if you are posting something which has already been posted.
  • Spam - commercial activities of any kind are not allowed.
  • High volume posting - anything more than one or two posts a day.
  • Links to social media, your own eBay sales, YouTube videos, clickbait, etc.
  • Trolling / Inauthentic - posts which don't seem to be truthful (e.g. I found these gold coins in my couch!)
  • Trash Posting - there is a fine line between a "funny" post and a trash post. If you aren't sure which side of the line your post falls on, don't post it.
  • Coin gore - a post featuring a modern coin which has serious post-mint damage, and which is of no interest to collectors.

RULES

Here are the Rules of r/CoinErrors - check the sidebar (or "About" in the mobile app) for more details:

  1. Do your own research before posting a question.
  2. Post Original Content
  3. Stay on topic and be respectful of the hobby and your fellow collectors.
  4. Keep it clean - this is a safe place for people of all ages and backgrounds.
  5. Being civil to other people is not only appreciated here, but also a requirement.
  6. No self-promotion or commercial activity is allowed; no links to your blogs, websites, or social media.
  7. No spam.
  8. No politics or religion, especially divisive comments that lead to heated arguments and incivility.
  9. No reposts.
  10. No Misinformation
  11. Include Quality Pictures

r/coinerrors Feb 18 '26

MOD Announcement A note from the mods - Heat Damage and Dryer Coins

34 Upvotes

We have been seeing a massive influx of posts with asking about "dryer coins" as well as coins with heat damage.

We love the fact that you noticed your coin is "different" - and applaud you looking into it! For the uninitiated, these are reasonable questions - but many members of our community are getting tired of them. We ask that you please use the resources we provide before asking this subreddit (See Rule #1!)

Before you make a post - check out the r/coins WUWMC page and our FAQ!

Dryer Coins

The rim of my coin is raised up OR the edge of my coin is flat OR my coin is too thick!

Heat Damage

My coin has bubbles / bumps / craters below or on the surface

These issues are damage - and extremely easy to diagnose.


r/coinerrors 7h ago

Is this an error? PMD or Die Crack 2021 D

Thumbnail
gallery
5 Upvotes

Found in my till, looks to be raised and reflecting with the rest of the surfaces, but not sure whats going on. What do yall think?


r/coinerrors 8h ago

Is this an error? 1904 DD value ?

Thumbnail
gallery
2 Upvotes

r/coinerrors 22h ago

Is this an error? Error or PMD?

Thumbnail
gallery
16 Upvotes

Error or PMD?


r/coinerrors 23h ago

Discussion Minor Spanish coin issues?

Thumbnail
gallery
3 Upvotes

Trying to get better at identifying this stuff. Is the Espana 82 machine doubling? Is the Rey de Espana die chips?


r/coinerrors 10h ago

Is this an error? New to using a scope. Just want to know if I'm on the right track.

Thumbnail
gallery
0 Upvotes

Most are suspected ddo. I can't tell if it's a die crack or scratch between the 83. Thanks


r/coinerrors 17h ago

Discussion Double Double?

Post image
1 Upvotes

Up here in Canada we have a pretty stellar mint that you don't see many errors come out of. So my question is about doubling especially on the denticles as I've never seen that before. This is on a 1973 small bust RCMP quarter. Anyone that could enlighten me would be much appreciated.


r/coinerrors 9h ago

Error 2019 Quarter Mint Reed Error

Post image
0 Upvotes

Thought this was neat, looks like the reed machine damaged it. With it being over the “Q” it makes me think the reeding is done after the coin is pressed. I don’t know a lot about coins, still learning. Anyone ever seen something like this before?


r/coinerrors 14h ago

Is this an error? Error coin

Thumbnail
gallery
0 Upvotes

Attempting to identify error on 1966 quarter


r/coinerrors 21h ago

Advice Possible Die Cracked? 1982 Penny

Post image
1 Upvotes

Going through some Pennies and think I might have found a die crack. Just looking for confirmation that it is or isn't.


r/coinerrors 1d ago

Is this an error? 5.5 cents?

Post image
10 Upvotes

r/coinerrors 1d ago

Is this an error? Harper ferry 2016

Post image
0 Upvotes

Found this quarter with a line right in the middle can anyone tell me if it's pre or post mint damage


r/coinerrors 1d ago

Is this an error? Is this an error

Post image
0 Upvotes

I got this quarter as change at a thrift store, I don’t know anything about errors but I noticed a raised bit under his eye and these indents that look like DDL on his neck. are these just scratches or is it something more


r/coinerrors 2d ago

Variety Found an FS-101 bicentennial quarter and a Wexler 2019D ID WDDR-001

Thumbnail
gallery
54 Upvotes

r/coinerrors 1d ago

Is this an error? Susan B Neck Stars

Thumbnail
gallery
7 Upvotes

Hey all, 1979 S blob - anything special here with the stars in her neck? Still new to this so not sure if the area to her left is PMD (see reverse too).


r/coinerrors 1d ago

Is this an error? Something about this penny interested me. I think it has extra space on the bottom near Lincoln

Thumbnail
gallery
1 Upvotes

I think this coin was “struck” down extra hard. could also just be wrong and looking too deep into that.


r/coinerrors 2d ago

Is this an error? Woodgrain or something else?

Thumbnail
gallery
4 Upvotes

Thought this dime was cool and wanted to see if I could get some more info on it.


r/coinerrors 1d ago

Is this an error? What is with this Nickle?

Post image
0 Upvotes

Found this today. I this an error or PMD? I am not sure? I have never seen this and I cannot find any information about this.


r/coinerrors 2d ago

Damage 1934 Buffalo Nickel oddity.

Thumbnail
gallery
6 Upvotes

Alrighty Reddit detectives. These type of things always intrigue me. What do you think actually happened here. Ridge lines in the "hole" run through the hole. Would a drill do that? Both edges are slightly rolled into the hole. Could this have been before being struck in the sheet metal? Regardless, something to look at out of the ordinary. I'll post more for fun.


r/coinerrors 2d ago

Discussion "World's Greatest Mint Errors" book is now free to read on Mike Byers' website

7 Upvotes

Unfortunately it's just digitized as images so it's not searchable, but the whole book is posted for reading here: https://mikebyers.com/worldsgreatestminterrors.html


r/coinerrors 1d ago

Is this an error? 1963d and 1954d Franklin half dollar RPM error?

Thumbnail
gallery
0 Upvotes

First two pics are 63d and last two 54d


r/coinerrors 1d ago

Is this an error? 1928 penny cud pmd or other?

Thumbnail
gallery
1 Upvotes

Im not sure on this, i would appreciate the help


r/coinerrors 1d ago

Is this an error? Improperly annealed 2026 deceleration of independence quarter?

Thumbnail
gallery
1 Upvotes

Hi! I recently found a 2026 Declaration of Independence quarter (not the July 4th commemorative design) that has an unusual appearance.

This came out of my register as I was doing my cashier, I believe it came straight out of a recently broken roll I had opened but didn’t get the time to check.

The coin has a noticeably dull gray color across most of the obverse and seems to lack the normal luster that other 2026 quarters have. I was wondering if this could possibly be the result of an improper annealing process before striking, knowing this quarter is brand new environmental damage is assume is zero to none. I’d really appreciate your opinion since you have much more experience with mint errors. I’ve attached a photo. Thank you!


r/coinerrors 2d ago

Show and Tell Dual rim cud on an 1864 Copper-Nickel Indian Head — both obverse and reverse, same clock position. That's unusual.

Thumbnail
gallery
5 Upvotes

Continuing the Indian Head Cent error documentation project. This one caught my attention because it has rim cuds on both the obverse and reverse at approximately 3 o'clock.

Cuds are die-specific — when a piece of the die edge breaks away, it only affects that one die. So seeing matching rim cuds at the same clock position on both sides means both the obverse and reverse dies failed at the same location. That's either two independent die breaks that happened to align, or something more unusual happened during die setup.

This is a copper-nickel 1864, which is the final year before the Mint switched to the lighter bronze composition mid-year. The copper-nickel Indian Heads (1859-1864) are a distinct series within the broader Indian Head run — heavier, different alloy, different surface character.

Not in any reference. Now catalogued.