Federal Reserve Bank of New York. "3191. United States Savings Bonds Official Symbol for Issuing Agents," Federal Reserve Bank of New York Circulars (March 3, 1947). https://fraser.stlouisfed.org/title/466/item/10694, accessed on April 19, 2024.
Federal Reserve Bank of New York. "3191. United States Savings Bonds Official Symbol for Issuing Agents," Federal Reserve Bank of New York Circulars (March 3, 1947). https://fraser.stlouisfed.org/title/466/item/10694, accessed on April 19, 2024.