The WWII Postal Savings Plan for the Purchase of United States Defense Savings Bonds was a system implemented during World War II to encourage Americans to invest in their country's defense efforts. This original piece from the United States was part of the home front initiatives to support the war through financial means. The plan allowed individuals to save money through postal savings accounts, which could then be used to purchase defense savings bonds, ultimately helping fund the war efforts. Comes with 4- 25 cent stamps already stamped on inside (see pictures). SHIPPED USPS FIRST CLASS MAIL.