In order to furnish suitable notes for circulation as Federal
reserve notes, the Secretary of the Treasury shall cause plates and
dies to be engraved in the best manner to guard against
counterfeits and fraudulent alterations, and shall have printed
therefrom and numbered such quantities of such notes of the
denominations of $1, $2, $5, $10, $20, $50, $100, $500, $1,000,
$5,000, $10,000 as may be required to supply the Federal Reserve
banks. Such notes shall be in form and tenor as directed by the
Secretary of the Treasury under the provisions of this chapter and
shall bear the distinctive numbers of the several Federal reserve
banks through which they are issued.