Federal Reserve Bank of New York. "3448. Offering of 1 1/4 Percent Treasury Certificates of Indebtedness of Series E-1950 in Exchange for 1 1/8 Percent Treasury Certificates of Indebtedness of Series E-1949 [etc.]," Federal Reserve Bank of New York Circulars (May 19, 1949). https://fraser.stlouisfed.org/title/466/item/10949, accessed on October 4, 2026.