Keywords: 1936 airmail stamp CE2.jpg en February 10 1936 16¢ Carmine Blue Great Seal of the U S CE2 U S Post Office; Smithsonian National Postal Museum Bureau of Engraving and Printing; Imaging by Gwillhickers 1936-02-10 PD-USGov Airmail stamps of the United States Red stamps Stamps of the United States 1931-1940 |