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Post Your Cool Serial Numbers Over 99%

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 Posted 12/17/2022  1:41 pm  Show Profile   Bookmark this reply Add Tunnioc to your friends list
2017 US $1 Banknote True Binary
99.42%-Coolness Index
extremely cool-Rating

163 (octal), 115 (decimal), 73 (hex)

Post-Your-Cool-Serial-Numbers-Over-99%
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 Posted 12/17/2022  7:19 pm  Show Profile   Bookmark this reply Add jonjrl1963 to your friends list
The Chase National also shows the ""B" suffix. Only note with that.
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 Posted 12/17/2022  7:20 pm  Show Profile   Bookmark this reply Add jonjrl1963 to your friends list
.
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 Posted 12/17/2022  7:23 pm  Show Profile   Bookmark this reply Add jonjrl1963 to your friends list
Please belay my Chase post. It was incorrect.
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 Posted 12/19/2022  4:40 pm  Show Profile   Bookmark this reply Add Morgans Dad to your friends list
JMO, I have been collecting Notes and Currency since 1960's and believe Currency, while Numismatics Nomenclature has changed for Additional Collectables. I'm talking about Serial Numbers that have Value, Maybe NOT to All collectors, Added Monetary Collector's Value. I have not Ever heard about the " coolness level " term of currency's or coinages. I'm writing this because I Along the way, have Certain Likes about serial numbers, and Collect Errors, Fancy, numbered bills, Star notes Especially.... Collect what makes you happy.............PS, Love the Twin Hamilton's !!!

I use to attend Coin Shows and there, was Always the man I called " The Currency Man " the man had bills that took my breath away, I use to research a bill, attend and seek His Available Select Grade A bills.... IMO, The designs of days gone bye are Awesome !!!
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 Posted 07/10/2025  12:44 pm  Show Profile   Bookmark this reply Add Skippy Topaz to your friends list
Recently organized my "Fun" Serial Numbers.. I don't call them 'cool' or 'fancy' because I only collect for fun and keep circulation finds with serial numbers I find interesting regardess of condition. I didn't actually check them on the "Cool-O-Meter" so not sure whether they are officially "cool" or not but if I like it, then it's cool :)

These are my favorite circulation finds

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I like this one because it's a Radar Note but also reads as a Radar Note upside down (though, unfortunately not a Flipper)
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And these two pairs are my top favorite notes but have to confess, only one of them is a circulation find.. I don't purchase notes for their serial numbers, just enjoy the thrill of the chase in finding them but knew I was never going to find matching numbers in circulation, and just wanted a pair in my collection
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This pair came together because many years ago I found one of them in circulation and then about a year or so ago, I just happened to see someone on Reddit post the reverse and had a feeling it might go on sale some day, so I saved a Search and lo and behold, one day I got a notification that it was for sale and just had to get it.. I like to refer to them as a Double Super Binary Radar Repeater (a term I just made up for this post):)
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Edited by Skippy Topaz
07/11/2025 09:38 am
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 Posted Yesterday   09:14 am  Show Profile   Bookmark this reply Add elliottite to your friends list
99.31%
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 Posted Yesterday   10:46 am  Show Profile   Bookmark this reply Add mikev50 to your friends list
99.21%
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 Posted Yesterday   11:20 am  Show Profile   Bookmark this reply Add CelticKnot to your friends list
Those are both great notes/serials!

Now you just just need transpose the last two digits on each one.
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 Posted Today  1H 59M ago  Show Profile   Bookmark this reply Add mikev50 to your friends list
99.5%

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99.2%

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 Posted Today  1H 10M ago  Show Profile   Bookmark this reply Add jbuck to your friends list
Nice examples!

The second one belongs tucked inside a Dansco 7070.
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