Symbols of the United States Department of the Treasury include the Flag of the Treasury Department and the U.S. Treasury Seal. The seal actually predates the department itself, having originated with the Board of Treasury during the period of the Articles of Confederation. The seal is used on all U.S. paper currency, and (like other departmental seals) on official Treasury documents. The seal includes a chevron with thirteen stars, representing the original thirteen states. Above the chevron is a balance, representing justice. The key below the chevron represents authority and trust.