The Penny Red is a British postage stamp that was first issued in 1841. It was the world's first adhesive postage stamp to feature a value in the design, making it a significant development in postal history. The stamp depicted a profile of Queen Victoria and was printed in red ink, which is how it got its name. The Penny Red was used extensively until 1879, when it was replaced by the Penny Lilac. Despite its discontinuation, the Penny Red remains popular among collectors and is considered a classic example of early postal stamps. Its historical importance and unique design contribute to its enduring appeal.