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Postage stamps are small adhesive pieces of paper used to pay for the delivery of mail, bearing unique designs, values, and issuance dates. As collectibles, they serve as historical memorabilia that reflect the cultural, political, and artistic heritage of various countries and eras. They often feature portraits of notable figures, landmarks, flora, fauna, and other significant symbols. Postage stamps are miniature works of art that can reveal a nation's history, identity, and values. As relics, they hold sentimental and monetary value, making them popular among enthusiasts and investors worldwide.