Keywords: 1874-PlimptonEnvelope-orange-1cent.jpg en 1 cent blue on orange envelope of the 1874 Plimpton issue Size 10 89 x 160 mm ; Watermark 5 star Die 47 1874 U S Government stamped envelope; scan of original owned by the contributor U S Government PD-USGov Uploaded with UploadWizard Postal stationery of the United States Stamped envelope |