On July 1, 1847, the first federally issued postage stamps went on sale in the United States. While the use of postage stamps was not yet required by law—the recipient typically paid a postage fee to collect
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The Postal Universal Website of R.O.C ─ Stamp House - Pages
Postage Notes: Copyright Issues with Stamps of Sculptures
Apple Branch Rubber Cling Stamp
The annotations of the Official Code of Georgia Annotated are not protected by copyright. - MAW-LAW Web Site
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What am I allowed to do COMMERCIALLY with an image of a postage stamp, online or offline? Which countries allow that? - Legal Answers
Dahomey: Stamps The Stamp Forum (TSF)
Guest Post: Design Protection and Functionality: Does the PTO or the Copyright Office Apply a More Rubbery Stamp?