Series E bond

Series E U.S. Savings Bonds were marketed by the United States government as war bonds from 1941 to 1980. Those issued from 1941 to November 1965 accrued interest for 40 years; those issued from December 1965 to June 1980, for 30 years. They were generally issued at 75 cents per dollar face value, maturing at par in a specified number of years that fluctuated with the rate of interest. Denominations available were $25, $50, $75, $100, $200, $500, $1,000, $5,000 and $10,000. Series E bonds were issued only in registered, physical form and are not transferable. The guaranteed minimum investment yield for the bonds was 4 percent, compounded semiannually.