The coin in question is a 2007 Platinum Eagle, a special issue coin produced by the United States Mint. It features a denomination of $25 and is composed of 99.95% platinum, showcasing the high quality and purity of the material used. The coin's diameter measures 22 mm, reflecting its compact size, but the specific width and height measurements remain unspecified. This particular Platinum Eagle was produced in a limited mintage of only 3,690 pieces, making it a rare item for collectors. It is unmarked by any mint mark, indicating it was struck at the main mint location. The design details and edge type of the coin are not disclosed, but it falls under the broader category of collectible coins, emphasizing its significance when it comes to numismatics. Overall, this 2007 Platinum Eagle represents not only a monetary value but also an important piece of American coinage history, appealing to both investors and avid collectors alike. Its limited mintage and precious metal composition contribute to its desirability in the marketplace.