Keywords: US Postal Savings System 5.jpg en A certificate of a 5 deposit in the United States Postal Savings System issued on September 10th 1932 http //www hrharmer com/sales/2985-1/2985-1_01 html The United States Postal Savings System a division of the United States Postal Service 1932-09-10 PD-USGov United States Postal Service Certificates |