Keywords: Selected Parcel Post die proofs 1915 issue.JPG en Image of selected Parcel Post fie proofs 1915 issue 1915 U S Post Office; Smithsonian National Postal Museum Bureau of Engraving and Printing; Composite photo and Imaging by Gwillhickers PD-USGov Uploaded with UploadWizard Stamps of the United States 1911-1920 Red stamps Aircraft on stamps Trains on stamps |