Keywords: Thirteenth Amendment 1940 U.S. stamp.1.jpg <big>Thirteenth Amendment</big> to the U S Constitution was commemorated by a 3-cent stamp on the 75th anniversary on October 20 1940 The amendment abolished slavery in the U S The bronze sculpture by Thomas Ball in Lincoln Park DC was funded by voluntary subscriptions from emancipated slaves depicting Lincoln presenting the Emancipation Proclamation to a black man Issued on October 20 1940 U S Post Office; Smithsonian National Postal Museum Bureau of Engraving and Printing PD-USGov Uploaded with UploadWizard History of the United States on stamps 1940 stamps of the United States Purple stamps Commemorative stamps of the United States |