Whoever, with intent to defraud, falsely makes, forges, counterfeits, or alters any obligation or other security of the United States, shall be fined under this title or imprisoned not more than 20 years, or both.
18 U.S. Code § 471 - Obligations or securities of United States
Historical and Revision Notes
Mandatory punishment provision was rephrased in the alternative.
Changes in phraseology were made.