The largest denomination of U.S. paper money ever produced, the $100,000 gold certificate was part of a series of gold certificates issued by the U.S. Treasury to Federal Reserve banks in exchange for the gold the banks turned over to the treasury. The printing on the bill includes the phrase, "This is to certify that there is on deposit in the Treasury of the United States of America One Hundred Thousand Dollars in Gold payable to bearer on demand as authorized by law." This note, always a popular attraction, came to the Smithsonian in 1978 from the U.S. Treasury.