You’ve heard the phrase “a dollar saved is a dollar earned”—but sometimes a dollar saved can be worth hundreds,
even thousands. That’s because collectors pay big money for $1 bills with rare serial numbers.
Each bill has an 8-digit serial number, but not all combinations are common.
Some unusual patterns slip through printing, and those are the ones collectors chase.
Here are a few of the most valuable types:
Ladder – numbers in order (01234567).
Radar – first four digits mirror the last four (22211222).
Super Radar – middle six digits match (23333332).
Repeater – numbers repeat (01570157).
Super Repeater – two digits repeat through (01010101).
Radar Repeater – both a radar and repeater (12211221).
Double Quad – first four digits one number, last four another (00003333).
Seven in a Row – seven digits the same (11111115).
Seven of a Kind – seven digits match, not all in a row (11115111).
Binary – only two digits appear, fewer than seven of either (11313111).
Before spending cash, glance at the serial numbers—you might have a hidden treasure. Curious? Check coolserialnumbers.com for values.