Federal Reserve Bank of Chicago. "Optional Redemption of Treasury Certificates of Indebtedness - Series V-F - Dated February 13, 1919, Maturing July 15, 1919, Circular no. 185" in Federal Reserve Bank of Chicago Bulletins and Circular Letters (July 3, 1919). https://fraser.stlouisfed.org/title/7180/item/655595, accessed on September 10, 2024.