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 March 28, 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 March 28, 2024.