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Rare Stamps refer to postage stamps that are considered to be scarce or hard to find due to their limited production, unique design, historical significance, or other special attributes. These stamps are highly sought after by collectors and enthusiasts for their rarity and value in the philatelic market. Rare stamps can vary in rarity and value, with some being one-of-a-kind pieces that fetch high prices at auctions, while others may be limited edition releases or printing errors that are highly coveted by collectors.