One dollar bills that were made in 1957 were made with a few special identifiers. The first thing to look for is the date on the dollar bill. Many 1957 one dollar bills have a blue seal on them to help identify them by that year. Some of the serial numbers in the bills included a star.
A 1957 one dollar bill that has a value of $15 would be made in the year 1957, have a blue seal that has not been worn out and have a star in the serial number. This bill must also be in mint condition and must never have been circulated.Learn more about Coins & Currency