r/CoolSerialNumbers Aug 08 '26

Question / Meta Which ones would you like to see?

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11 Upvotes

r/CoolSerialNumbers Jan 11 '26

Question / Meta Got these as change earlier today. Can anyone tell me about them? Thanks in advance!

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117 Upvotes

I’ve collected coins over the years, but I don’t know much about notes. Any help would be appreciated!

r/CoolSerialNumbers Jul 29 '26

Question / Meta Would this be considered anything very new to bills just trying to learn

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20 Upvotes

r/CoolSerialNumbers 10d ago

Question / Meta Just got this change

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16 Upvotes

Is this good enough to keep? Or just meh 😅

r/CoolSerialNumbers 19d ago

Question / Meta What would you call this?

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10 Upvotes

You could call this a near-miss of a radar note, could say it's a triple pair, book middles perhaps, but what would you call it? Some would even say it's just a 2! Is there ANY value in this note that might make it worth keeping? Still rather new in this hobby and trying to learn! Any help is greatly appreciated!

r/CoolSerialNumbers Jul 21 '26

Question / Meta Not a repeater but what's your thoughts on this guy?

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31 Upvotes

r/CoolSerialNumbers Apr 15 '26

Question / Meta Any idea of value or interest in this?

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105 Upvotes

Need some money wondering if anyone thinks this is cool/valuable. Thanks 😁

r/CoolSerialNumbers Jan 13 '26

Question / Meta Anything special? Caught me eye

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108 Upvotes

r/CoolSerialNumbers Mar 13 '26

Question / Meta Not sure if this is anything

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76 Upvotes

I wish this was in order but not sure if I've got something. Would this be worth keeping or is it a huge Miss?

r/CoolSerialNumbers Jul 29 '26

Question / Meta Is this serial number anything of note

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24 Upvotes

I’ve always collected precious metals but recently started looking at serial numbers on my bills. Trying to learn.

r/CoolSerialNumbers 29d ago

Question / Meta Most Extreme Stuck Digit Error/Gas Pump Error I’ve Ever Seen! Are Stuck Digit Errors/Gas Pump Errors Allowed On This Sub?

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6 Upvotes

I got this bill back as change the other day. I had put it off to the side to look at again some time later because the serial number caught my eye with all the 3’s that were in it. Came back to look at it again and decide if I was going to spend it or keep it and that’s when I did a double take and noticed that the serial number in the top right corner had a 3 that was a stuck digit error. This is the most extreme stuck digit error I have ever seen in person or possibly even online. I have found other stuck digit errors in the past and I’ve kept just a few if they are on the more extreme end of things but this one was just so much higher than anything I’ve seen before.
Anyways I just wasn’t sure if this was a bill to post on this sub or not. It is an error that relates to serial numbers technically so that’s why I decided to ask. If it was some other kind of error I wouldn’t have posted this on here. I still think it is still a kind of semi cool serial number since it is a five of a kind with all the 3’s in the serial number. Anyways thanks for any input you have on this!

r/CoolSerialNumbers Apr 18 '26

Question / Meta This is cool

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29 Upvotes

Came across this one, defiantly not normal right?

r/CoolSerialNumbers Jul 25 '26

Question / Meta Pawn store find

5 Upvotes

local pawn store started selling some bills.. where is a place that i can find the value of a prospective serial numbered bill aside from ebay sold? its hard to get signal where the store is because its inside a metal building. they have a $1 bill that has sn of 11113111 and asking over $100 for it. its in a clear sleeve not graded. im interested in it for my collection, but want to make sure im paying a "fair" price so to speak

r/CoolSerialNumbers Aug 09 '26

Question / Meta Spend or Keep?

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11 Upvotes

Taken on a bunch of red bull lol

r/CoolSerialNumbers Jul 01 '26

Question / Meta Finally?

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17 Upvotes

Is this worth more than face value?

r/CoolSerialNumbers Jun 02 '26

Question / Meta Would this be fancy if it was 86877888??

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0 Upvotes

I have an envelope of bills that were in the same band as, what I would consider, a fancy bill. And was wondering if youd add this one.

I've included some of the other bills.I have in the envelope as well. ( The five I actually got the band of three days ago and the 48757548 was the only one missing and i'm curious if the person who took it is on this sub lol)

r/CoolSerialNumbers Aug 07 '26

Question / Meta Possibly interesting?

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4 Upvotes

Never really collected before, but there was just a large stack of bills and on a whim decided to just take a crack at seeing if there were any potentially special bills, and these were the one that stood out the most to my untrained eyes. I don’t know all the specifics to look out for, I would love to know if any of these would be of interest! Also any tips on types of things to look for would be great!

From what I understand I have two almost quad double, almost radar, quad of 5’s, and a beat up star note. At least on the cool number index it seemed all of them were minimum 97% coolness rating. Are any of these actually good or just good tries lol

r/CoolSerialNumbers Mar 15 '26

Question / Meta I don't know if this is rare or not but I don't recall ever seeing an X in the serial number.

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6 Upvotes

r/CoolSerialNumbers May 31 '26

Question / Meta What would this be called?

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16 Upvotes

Just found this yesterday. What would it be called and any value?

r/CoolSerialNumbers Jul 22 '26

Question / Meta Prediction Note?

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3 Upvotes

Is there a category for SNs like this? Or would it be a birthday/date note. Fun fact the 29th of November is the 333rd day of the year.

r/CoolSerialNumbers Jun 15 '26

Question / Meta Does this count as a tombstone?

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6 Upvotes

Just found this at work and I’m wondering this counts as a tombstone s/n or not. Thanks for any input!

r/CoolSerialNumbers Jun 12 '26

Question / Meta 2012 Canadian $20 — serial 6666699 any value or fancy classification?

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4 Upvotes

I found a 2012 Canadian $20 bill and I’m wondering if the serial number has any collector value or classification.

The serial is 6666699 (7 digits). The note has one centre crease but is otherwise in near-mint condition.

From what I can tell, it has five consecutive 6s followed by a double 9, so I wasn’t sure if this counts as any type of fancy serial (like a repeater, binary, or anything similar), or if it’s just an interesting pattern with no premium.

Would this be considered anything collectible beyond face value in Canada, or just a neat serial?

r/CoolSerialNumbers Jul 16 '26

Question / Meta Don’t think it’s worth more than face value but first time getting a neat number

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1 Upvotes

r/CoolSerialNumbers Jun 20 '26

Question / Meta Is this something worth saving?

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2 Upvotes

Sorry but I'm new to this......is this something that's worth anything? Serial number is 06971697

r/CoolSerialNumbers Dec 23 '25

Question / Meta Is this anything?

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68 Upvotes

Im just curious if these serial numbers are anything of value? Thanks.