# How to collect and invest in one dollar banknotes using serial numbers

A dollar bill may not look like a lot of money, but some are rare and can become part of an investment. The key to knowing if a dollar bill is worth more than face value is to check the serial number. Serial numbers are a combination of a letter, eight digits, and another letter at the end. You can find them easily because they are printed in green and are located twice on each bill. One is near the lower left corner of the portrait of George Washington, and the other is located in the upper right corner of his portrait. Combinations of serial numbers are key to determining the rarity and investment value of an account.

The first letter goes from “A” to “L”. These 12 letters are codes for the cities in which they are printed. The last letter indicates how many times the Engraving and Printing Office uses the sequence of serial numbers. So, “A” means that the serial number only worked once. “B” indicates a second time and “C” is the third. The number of letters passes through the alphabet with 26 letters.

Between the letters are eight digits representing how many one-dollar bills are printed in a year. The first one printed will be “00000001”. The last one is “32000000”. The lower or higher the numbers, the more they cost as an investment. For example, an account with a low number such as 00000095, or one with a large number 32000022 can take between \$ 25 and \$ 100.

Also, a specific combination of numbers can add value. If you only have two numbers in the set, such as “2” and “4”, for example 22424442. This number costs a little more than face value. But if you have a repetitive pattern, 24242424, or 24224224, your investment has just increased by about \$ 1000. This special combination is called a “binary account”.

You can also get a set using three numbers, such as “2”, “4” and “7”, you can have them in a special order, such as:27244727 or 59577975 Of course, if they follow a repetitive order, they are worth more. You should know that a combination of two numbers will be more valuable than a combination of three numbers. These are called “tricular bills” that can only get \$ 3 or \$ 5.

Another type is called a “ladder”, which is a direct count from 1 to 8: 12345678 or back: 87654321.

A “radar” account reads the same numbers back and forth as a mirror: 14622641. The “super radar” bill includes only two numbers, the same only at the beginning and end: 59999995. Radars can cost around \$ 25, while super radars can cost around \$ 70.

Two or more separate accounts with consecutive serial numbers, such as 25348793 and 25348794, are two banknotes printed one after the other.

“Doubles” appear when you have two identical numbers: 33774499. “Double four” is two sets of four of the same number: 33335555. Even counting with one number repeated eight times: 44444444 can bring \$ 500.

You can also find a “star note”. If you see a star at the end of a serial number, it means that it is a replacement account for one with the same serial number that was damaged.

Special combinations of serial numbers of one-dollar banknotes vary in value, from just a few dollars to a few thousand. My advice is to go to your bank and ask for a “strap” for one dollar, which is a package of 100 one-dollar bills. Browse them and see what serial number models you can find. Sometimes a new package of one-dollar bills will come to a bank directly from the Bureau of Engraving and Printing. So you may have a good chance of finding consecutive accounts that could possibly bring you a few more dollars if you sell them to a collector. Just remember that any account with a special serial number is a rare item. Now you have a good reason to check the dollar bills in your pocket or purse.