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.
18 U.S. Code § 337. Coins as security for loans
1994—Pub. L. 103–322 substituted “fined under this title” for “fined not more than $10,000”.
“The amendments made by this section [enacting this section] shall apply only with respect to loans made, renewed, or increased on or after the 31st day after the date of enactment of this Act [July 23, 1965].”