Fancy Serial Numbers on Banknotes

Two identical banknotes can be worth very different amounts for a single detail: their serial number. Certain combinations are so sought after that they multiply the price of a piece, often far above face value. These are the most prized types.

Low serials

The lowest numbers —00000001, 00000002, 00000003…— are the first printed of an issue and, for their rarity and symbolism, are highly valued. The lower the number, the greater the interest.

Solids

All digits the same: 7777777, 5555555. They are extremely scarce and eye-catching, hence the strong demand.

Radars (palindromes)

The number reads the same left to right as backwards, such as 1234321 or 4567654. They are called radar or palindrome notes and are a classic of serial collecting.

Ladders

Digits in ascending or descending sequence: 1234567 or 7654321. They are very visual and hard to find without wear.

Repeaters and other curiosities

Patterns such as 123123123, repeated pairs, or recognizable dates also attract interest. In some countries there are also replacement notes (with a star or special mark in the serial), printed to replace defective pieces and therefore scarcer.

Condition still rules

An extraordinary serial number lifts the value, but conservation remains decisive: a spectacular serial on a heavily circulated note is worth far less than on an uncirculated one. The combination of fancy serial + excellent grade is what reaches the highest prices, as with the $2 note with serial L00000002A we covered in News.

Sources

• Numismatic auction houses (e.g. Heritage Auctions) — results for notes with fancy serial numbers.
• The fancy-serial collecting community and notaphily literature.
• Standard Catalog of World Paper Money (Albert Pick).