Solid Serial Number Value
A solid serial number is eight identical digits: 11111111 through 99999999. There are exactly nine of them in every run of 100 million notes, which makes them roughly one in eleven million. They are the most sought-after pattern in the hobby.
Because 00000000 is never issued, there is no solid zero. That leaves nine per run, and demand comfortably exceeds supply in every denomination.
Quick facts
- Definition
- All eight digits identical
- How many exist
- Nine per run of 100 million
- Odds in circulation
- Roughly one in eleven million
- Most desirable
- Solid sevens and solid ones
- Near miss
- Seven of a kind, worth a fraction as much
Solid Serial Numbers value by condition
| Condition | Estimated value | Notes |
|---|---|---|
| $1 solid, circulated | $200 to $500 | |
| $1 solid, uncirculated | $500 to $1,500 | |
| $5 to $20 solid, uncirculated | $700 to $2,500 | |
| $100 solid, uncirculated | $1,500 to $6,000+ | |
| Solid star note | $2,000 to $15,000+ | Both premiums stack |
| Seven of a kind | $80 to $600 | Not a solid, priced separately |
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Point your camera at a bill and get the series, type, rarity, and an estimated value range in seconds. No typing, no guessing at the series letter.
- Reads the series, seal type, and signatures from a photo
- Flags star notes and collectible serial number patterns
- Estimates a value range by condition
- Works on US and world banknotes
Why solids command so much
The appeal is that a solid is instantly recognizable. You do not need to know anything about currency to look at 77777777 and understand that it is unusual. That pulls in buyers from well outside the collector base, and a wide buyer pool on a supply of nine per run produces strong prices.
Solid sevens attract extra demand for obvious reasons, and solid ones are popular for being the first. The middle digits trade closer to the base range.
Seven of a kind is a different animal
A note reading 44444442 has seven identical digits and one odd one. Collectors call it a seven of a kind or a near solid, and it is genuinely collectible, but it is not a solid and should not be priced as one.
The premium depends on where the odd digit sits. At the very start or the very end it is more desirable than buried in the middle, because the pattern reads cleanly.
Frequently asked questions
How rare is a solid serial number?
Nine per run of 100 million notes, roughly one in eleven million. It is the scarcest commonly collected pattern.
Is 00000000 a solid serial number?
It does not exist. Serial numbering starts at 00000001, so there is no all-zeros note.
How much is a solid serial $1 bill worth?
Roughly $200 to $500 circulated and $500 to $1,500 uncirculated. A solid on a star note or a higher denomination goes considerably higher.