The seal devised by the Comptroller of the Currency for his office, and approved by the Secretary of the Treasury, shall continue to be the seal of office of the comptroller, and may be renewed when necessary. A description of the seal, with an impression thereof, and a certificate of approval by the Secretary of the Treasury, shall be filed in the office of the Secretary of State.
12 U.S. Code § 12. Seal of Comptroller
(R.S. § 330; Feb. 18, 1875, ch. 80, § 1, 18 Stat. 317.)