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We’ve talked about the most famous American postage stamp. But the Inverted Jenny, though highly valuable, is not the rarest. That honor belongs to the stamp known as the Z Grill. In the stamp world, a grill is a pattern of indentations pressed into the paper. These indentations serve two purposes: first, they allow the more »
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The first postage stamps, introduced in Great Britain in 1840, revolutionized postal delivery. The United States Postal Service introduced its own stamps in 1847, and made them the only acceptable form of postage payment eight years later. Stamps allowed for postage to be prepaid by the sender. Before stamps, postage was usually paid by the more »