Federal Reserve Bank of Chicago. "Conversion of 3 1/2% Interim Certificates and Definitive Bonds of the First Liberty Loan into 4% Convertible Gold Bonds of 1932-47, Circular no. 47" in Federal Reserve Bank of Chicago Bulletins and Circular Letters (December 4, 1917). https://fraser.stlouisfed.org/title/7180/item/655378, accessed on November 21, 2024.