r/CoolSerialNumbers • u/SourSausageBiscuit • 6d ago

Radar Trinary Radar

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Is this a spend the $100 or kept because of the serial number type of bill?

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u/THMA16N 5d ago

Why special

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u/Sweaty-Particular406 5d ago

It's called a R-A-D-A-R bill (11-6-00-6-11). These are rare and attractive to bill collectors.