The bill, which features President Woodrow Wilson, was created as a large denomination note for gold transactions between Federal Reserve Banks; it never circulated publicly.
[2][3] The $100,000 bill was created by the Bureau of Engraving and Printing under the order of President Franklin D. Roosevelt in response to the hoarding of gold during the Great Depression, believed to be slowing economic regrowth.
[4] Unlike the other denominations of US dollars, the $100,000 bill was never issued as a Federal Reserve Note (aka greenback).
[5] The $100,000 bill, in possession aside from the federal government, is deemed illegal on account of its large denomination and the regulations declared at its signing.
"This certificate is legal tender in the amount thereof in payment of all debts and dues public and private" is further incorporated, located atop the Treasury seal.