Federal Reserve Bank of Chicago. "[Advisory on Lost U.S. Treasury Certificates of Indebtedness from the Union Savings and Trust Company, Bluffton, Indiana], Circular no. 213" in Federal Reserve Bank of Chicago Bulletins and Circular Letters (October 6, 1919). https://fraser.stlouisfed.org/title/7180/item/655621, accessed on September 10, 2024.