The Introduction of a Post Office Box Service for Savings Bond Transactions, with Instructions for Processing Both Series HH Exchange Applications and Treasury Form PD 2639, Circular No. 86-37
Federal Reserve Bank of Dallas. "The Introduction of a Post Office Box Service for Savings Bond Transactions, with Instructions for Processing Both Series HH Exchange Applications and Treasury Form PD 2639, Circular No. 86-37," District Notices (Federal Reserve Bank of Dallas) (April 18, 1986). https://fraser.stlouisfed.org/title/5569/item/545501, accessed on March 29, 2024.