Federal Reserve Bank of Dallas. "[Treasury Department Circular No. 888 Regulations Governing Payment Under Special Endorsement U. S. Savings Bonds], Circular No. 68-270,"
District Notices (Federal Reserve Bank of Dallas)
(December 20, 1968).
https://fraser.stlouisfed.org/title/5569/item/543979, accessed on March 2, 2025.
@FedFRASER