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In other cases a valuable and a common variety of a stamp may differ only by the presence or size of the perforations. Thus new perforations are cut into the stamp, or perforations are cut off to make a common stamp appear like a rare imperforate or rare coil issue.
Stamp collecting is generally accepted as one of the areas that make up the wider subject of philately, which is the study of stamps. A philatelist may, but does not have to, collect stamps. It is not uncommon for the term philatelist to be used to mean a stamp collector. Many casual stamp collectors accumulate stamps for sheer enjoyment and ...
The smallest postage stamp on record was issued by Mecklenburg-Schwerin in 1856, and was a square, with sides measuring 10 millimeters. The biggest stamps in history were used in the United States from 1865 and measured 52 by 95 millimeters, but were used exclusively for mailing newspapers.
A self-adhesive stamp is a postage stamp with a pressure-sensitive adhesive that does not require moistening in order to adhere to paper. They are usually issued on a removable backing paper. Stamp collectors have criticized the format, because the rubber-based adhesive used tends to yellow the stamps
About 120 are specialized stamps from the US Specialized Catalogue. About 1180 are used stamp images that Scott is replacing with mint images in the general world catalogues or are poorly centered stamps that they are replacing with F to VF centered stamps. Only a handful of black and white images are left in the world catalogues.
Specimen stamps have no postal validity so postal administrations are free to distribute them as widely as they like and this can include to stamp dealers, philatelic magazines, government bodies, embassies and as promotional items for philatelists. As many specimen stamps are worth more than the originals, they have often been forged.
Contour stamp A toy rubber stamp featuring a pterosaur Fabrication of stamp by photopolymer method Ink pad "Barock Made in East Germany" (c.1960), in the collection of the Museum Europäischer Kulturen. Materials besides rubber can produce a stamp. Woodcut and linocut, the carving of linoleum, are art forms based on the same principles ...
Postage Stamps of the Hawaiian Islands in the Collection of Henry J. Crocker of San Francisco, Stamp Lover, 1908, 9pp; Postage Stamps of the United States of America, Junior Philatelic Society, 1905, 116pp; Postage Stamps worth Fortunes, (self published), 1908, 46pp; Postage Stamps worth Fortunes, Severn-Wylie-Jewett Co, American edition, 1918