Gold ya say?
12 U.S.C. § 95. Relates to limitations and restrictions on business of members of the Federal Reserve System "during such emergency period as the President . . . may prescribe."
https://ia802500.us.archive.org/3/items/senate-report-93-549/senate-report-93-549.pdf
EMERGENCY POWERS STATUTES:
PROVISIONS OF FEDERAL LAW
Now IN EFFECT DELEGATING TO THE
EXECUTIVE EXTRAORDINARY AUTHORITY
IN TIME OF NATIONAL EMERGENCY