Forensic philately: the science of stamp authentication
Share here your USA stamped First Day Covers (FDC's) from all eras - Page 6 - STAMPBOARDS - Postage Stamp Chat Board and Stamp Forum
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2 - 1847 10c Washington, black, imperforate - Mystic Stamp Company
Commemorative Stamp: Most Up-to-Date Encyclopedia, News & Reviews
Regal Collectibles - 1847, The Earliest U.S. Postage Stamps
Home Instead - JULY 1ST 1847 U.S. POSTAGE STAMPS WENT ON SALE FOR THE FIRST TIME. The 1847 issue was the first U.S. general issue. Although stamps were used in the
1 - 5¢ Franklin - First U.S. Postage Stamp
File:DR 1934 515 Paul von Hindenburg.jpg - Wikimedia Commons
Non-denominated postage - Wikipedia
Does anybody collect the Golden Replica type stamps? - STAMPBOARDS - Postage Stamp Chat Board and Stamp Forum
Category:George Washington on stamps - Wikimedia Commons