Now, the United States Currency Auction, which allows people to sell rare US currency, lists some $2 bills as worth upwards of $4,500.
But how can you tell if you have a valuable bill or a common one that isn't worth much?
Bills that have red, brown, or blue seals printed between 1862 and 1917 could be worth up to $1,000, per IndyStar.
Other serial numbers that would interest collectors are "solid" or "ladder" serial numbers.
Solid serial numbers are all the same digit, and ladders have digits in ascending order, per MarketWatch.
Persons:
—, you've, Thomas Jefferson, Dustin Johnston, Johnston, they've
Organizations:
Service, US, of Engraving, United States Currency, Bills, Heritage Auctions
Locations:
Monticello, Independence