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A postage stamp is a small piece of paper attached to mail that indicates that the postage (the cost of sending the mail) has been paid. Because stamps are sent on most mail, the stamp on a received item can be removed and placed on a different piece of mail to be sent, thus reusing the stamp without paying the proper postage.
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
High-volume batik uses liquid wax instead of ink, with a metal stamp. There are three main types of rubber stamp inking technology: traditional stamps with a separate ink pad, self-inking stamps with a self-contained die that flips to make an imprint, and pre-inked stamps where the die material is impregnated with ink.
Postage stamp paper is the foundation or substrate of the postage stamp to which the ink for the stamp's design is applied to one side and the adhesive is applied to the other. The paper is not only the foundation of the stamp but it has also been incorporated into the stamp's design, has provided security against fraud and has aided in the ...
"G" grill on a stamp of the 1869 issue. A grill on a postage stamp is an embossed pattern of small indentations intended to discourage postage stamp reuse.Used in the United States in the 1860s and 1870s, they were designed to allow the ink of the cancellation to be absorbed more readily by the fibres of the stamp paper, making it harder to wash off the cancellation.
An oddity is something that is within the bounds of usability for the stamp, but still has a distinctive appearance. The usual sort of oddity is misregistration on a multi-colored stamp, which can result in shirts apparently with two sets of buttons, eyes above the top of a person's head, and so forth. These can be extremely common.
Deinking is the industrial process of removing printing ink from paperfibers of recycled paper to make deinked pulp. The key in the deinking process is the ability to detach ink from the fibers. This is achieved by a combination of mechanical action and chemical means.
Heavily hinged (HH) is a mint stamp which was hinged and damaged in the process. Hinge remaining (HR) is a mint stamp which has part of a stamp hinge on the back. Original gum (OG): A stamp with its original gum, yet deteriorated by age. No Gum (NG): Stamp's gum has been washed off. Rarely, stamps are issued with no gum.