Federal Reserve Bank of Dallas. "[Executive Order Prohibits All Transactions in Foreign Exchange, Export or Earmarking of Gold or Silver Coin, Etc.], [Circular No. 18-4],"
District Notices (Federal Reserve Bank of Dallas)
(February 6, 1918).
https://fraser.stlouisfed.org/title/5569/item/547679, accessed on April 27, 2025.