This 40mm brass challenge coin features a detailed depiction of a Grey alien head on one side, and on the reverse, a pair of classic UFOs hovering over the word "Mars", surrounded by stars and the date 1947—a nod to the legendary year of UFO lore. The coin has been lightly aged to give it a vintage, time-worn feel, making it a perfect collectible for alien enthusiasts, sci-fi fans, or anyone fascinated by cosmic mysteries.
