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"Stickers" in this context refers to a form of ephemera, which are items designed for short-term use and disposal, but have since become collectible due to their historical significance or cultural value. Stickers can be considered a type of collectible, as they are often sought after by enthusiasts for their design, rarity, and the memories they evoke. They also fall under the category of historical memorabilia, as they can provide insight into popular culture, social movements, and significant events of the past. Stickers serve as a tangible representation of ideas, messages, and identities, making them an important part of our visual history and cultural heritage.