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The Golden Wattle ( Acacia pycnantha) was officially proclaimed the Floral Emblem of Australia on 1 September 1988. [ 10] Australia's state flowers have been featured on series of postage stamps twice—a set of six stamps in July 1968, each showing the flowers of one state, [ 11] and a series of seven stamps, showing the six state flowers and ...
Many artists have had the same work appear on different U.S. postages stamps and many artists have had multiple works appear on U.S. postage stamps. The list does not include artists who were commissioned by the U.S. Post Office Department (or its successor, the United States Postal Service) to specifically create artwork for a postage stamp.
A digital stamp in crafting, stamping, card making and scrapbooking is a digital image printed onto paper from the user's printer. Digital stamps come in a variety of formats, including PNG, JPG, and TIFF. Digital stamps offer many advantages over traditional rubber stamps because of their ability to be flipped, resized, rotated and easily stored.
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The first postage stamp issued by the Confederate States (1861) was a 5¢ green depicting Jefferson Davis. It was printed by the lithograph process by Hoyer and Ludwig of Richmond, Virginia. Like almost all Confederate issues, these stamps were imperforate, and single stamps had to be cut from the sheet with razors or scissors. This stamp was ...
The Stanley Gibbons Group plc is a company quoted on the London Stock Exchange specialising in the retailing of collectable postage stamps and similar products. [ 1] The group is incorporated in London. The company is a major stamp dealer and philatelic publisher. The company's philatelic subsidiary, Stanley Gibbons Limited, had a royal warrant ...
Alice signs a message—"Hello Bob!"—by appending a signature computed from the message and her private key. Bob receives both the message and signature. He uses Alice's public key to verify the authenticity of the signed message. A digital signature is a mathematical scheme for verifying the authenticity of digital messages or documents. A ...
The usual shape of a postage stamp is a rectangle, this being an efficient way to pack stamps on a sheet. A rectangle wider than tall is called a "horizontal design", while taller than wide is a "vertical design". A number of additional shapes have been used, including triangles, rhombuses, octagons, circles, and various freeform shapes ...