18 U.S.C. § 337 - U.S. Code - Unannotated Title 18. Crimes and Criminal Procedure § 337. Coins as security for loans

Whoever lends or borrows money or credit upon the security of such coins of the United States as the Secretary of the Treasury may from time to time designate by proclamation published in the Federal Register, during any period designated in such a proclamation, shall be fined under this title or imprisoned not more than one year, or both.